- 2 hours ago
Dive into 14 K-pop cardboard DIY ideas for Rumi, Mira, and Zoey, plus our massive Huntrix cardboard house build. Discover fun room decor and idol-inspired accessories made from simple boxes. Follow the easy steps to create fan merch and epic playsets. Stay to the end for a full tour of Rumi’s K-pop Demon Hunters mansion and share your favorite craft in the comments.
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00:00For Rumi, ice cream's like Gimbop. The bigger, the better.
00:05Ah, a life in plastic is truly fantastic.
00:10Well, speak of the Barbie, and she shall appear.
00:19It's okay, Rumi. We can make our own dream house.
00:23But first, why don't we clean you up?
00:27There's a bit of a smell, not to mention all that ice cream on your face.
00:33We need to build a bath.
00:37Now, water and cardboard don't mix.
00:42But this is a dream house, so anything goes.
00:50Sure, it's a little strange taking a bath in confetti.
00:56But all that really matters is that you have a rubber ducky.
01:02See? It even floats.
01:04Well, sort of.
01:07Ah, nothing beats a nice, clean face.
01:13Of course, now we'll need new clothes.
01:17We can't exactly go shopping, but I'm sure we can whip something up.
01:22Or better yet, draw something up.
01:28Now cut it out.
01:33All it needs is a little hunt-tricks magic.
01:36And voila!
01:40Next, your coat.
01:44Wow, purple is your color, Rumi.
01:47That was fun, but we should really check the time.
01:51Uh-oh, she's late for a possibly important date.
01:56But soon, she'll always be on time with this new gadget.
02:02It already feels pretty homey.
02:08Or, at the very least, homemade.
02:16Don't forget the chimney.
02:17We want all the bells and whistles.
02:20Can you guess what we're making?
02:22That's right!
02:23A cuckoo clock!
02:25Of course, we gotta make sure the time is right.
02:28Otherwise, it'll only work twice a day, I think.
02:32It needs a good foundation.
02:34And derpy.
02:36Derpy's always needed.
02:42Of course, I do have a question.
02:45Where's the cuckoo?
02:49Leave it to Sussy to make a big entrance.
02:53Either way, I'm pretty sure it's time to eat.
02:57You know what that means.
02:59Show us your teeth!
03:04But it's going to need a few additions.
03:09When it comes to tubes, the more the merrier.
03:14Can you guess our newest craft?
03:17Well, it's got a lid.
03:23And it looks like I wasn't wrong about those tubes.
03:31Good idea!
03:32This should put some spring in their step.
03:38It's mostly done.
03:40So we should personalize it.
03:41Like with a Huntrix logo.
03:43And a cute little derpy face.
03:47Did you guess?
03:48We've got our very own rice cooker!
03:51Now we can make all sorts of things.
03:54Like, kimbap!
03:55Or just plain rice.
03:57It is the best side dish.
03:58Just press a button and keep your eye on the timer.
04:01Or clock, as it were.
04:04Either way, we've got rice!
04:09Just can't wait to dig in, can you?
04:13Of course, rice isn't exactly finger food.
04:17We're going to need chopsticks.
04:19Never used them before?
04:21All you need is a simple wrap.
04:23And maybe a little practice.
04:33That was good.
04:34But now Rumi will want something to wet her whistle.
04:41And what can be more refreshing than cardboard?
04:48Okay, you can't drink it.
04:50But you'll see how it can help.
05:01Grab some bottles.
05:03Holding liquids is their job.
05:06Now it's time for us to bend those straws.
05:10Remember, always save your bottle caps.
05:15Because you'll never know when they'll come in handy.
05:23Why don't we add some color?
05:25How about a nice sky blue?
05:29And I wouldn't say no to some nice wallpaper.
05:34For our new soda machine!
05:37Complete with your favorite fruit flavors.
05:41Wait, where's the soda?
05:46Guess we've got to fill her up.
05:51You know, all this crafting is busy work.
05:54So why don't we try it out?
05:56Pick a flavor.
05:59Ooh, apple.
06:01I mean, it's important to eat, or drink, your greens.
06:07I wonder if it tastes like apple juice.
06:14Of course, we wouldn't say no to strawberry or orange.
06:25Ooh, looks like Rumi's got someone special on her mind.
06:29Of course, if you want to talk to Rumi, we're going to need to get you a phone plan.
06:43Ooh, now that's some cool wallpaper.
06:48Wow, Genu's already in your contact list.
06:51He looks so full of life.
06:53All things considered.
06:55You know, because he's a Saja boy.
06:59Okay, Rumi, we've got to save Genu.
07:03We need to build something that'll help.
07:08Or conjure up the Han Moon.
07:11Whatever comes first.
07:15Eh, we already started whipping up our latest cool tool.
07:19A hat.
07:22And robe.
07:23Oh, I see.
07:24It's a decoy Saja boy.
07:27But I don't think we're finished just yet.
07:30Rumi might need some weapons.
07:38Is she making a sword?
07:40Well, so far it kind of looks more like a barbell.
07:46Guess we're pumping iron.
07:49You'll need some energy.
07:50Hold on.
07:52And they say too much candy's bad for you.
07:57Soon, Rumi will be strong enough to hunt those demons.
08:06And if music doesn't work out, she can be a bodybuilder.
08:13Oh, I get it.
08:15It's training practice.
08:16Hold on.
08:18It's alive.
08:21Wow.
08:22It's just like that story where that guy makes a monster.
08:26What was it called again?
08:27Oh, yeah.
08:28Pinocchio.
08:30Come on, Rumi.
08:31You've trained for this.
08:33Literally just trained.
08:37And what's more powerful than the sword or the pen?
08:44That's right.
08:45Your voice.
08:47And I should know.
08:48So make yourself a microphone.
08:53I mean, you're a K-pop demon hunter after all.
09:01Obviously, this trick is best done with three.
09:07But every diva needs to try a solo career now and then.
09:11That's right.
09:13Rumi's part demon, but she sings like an angel.
09:20Yeah, you're going straight into the recycling bin.
09:26Looks like Rumi's up, up, up and back on top.
09:33Hey, Rumi and Mira.
09:34Did you hear that?
09:37Oh, no.
09:39Look.
09:39In the trash bin.
09:41It's Derpy.
09:42He doesn't look too good.
09:45Oh, but there's got to be something more we can do.
09:49Wow.
09:50Rumi sure got the magic touch.
09:52Er, wand.
09:54Now Derpy's got a little surprise for you.
09:58It's a school.
09:59Just in case you want to leave show business.
10:05Do you think the teacher will be nice?
10:10Asaja boy.
10:11Oh, I want to see his credentials.
10:15Well, if he tries anything funny, we can take him.
10:20Unless he confiscates your stuff.
10:23But it's okay.
10:25We can always make new cool tools.
10:28Or wait until June.
10:32Eh, it's more fun to make a tinfoil wand instead.
10:40And he won't take it if he thinks it's just a pen.
10:44After all, a girl's got a right.
10:51Lunch time.
10:52It's Mira's favorite.
10:54Extra spicy ramen.
10:58Uh-oh.
10:59Lunch isn't until next period.
11:02Let's hope this stuff tastes better cold.
11:06Always fun to take photos of your friends.
11:12Especially when you've got a craft in mind.
11:17Take some pink.
11:19Mira's signature color.
11:22And draw her up a whole new hairstyle.
11:28But we're going for the full body look.
11:32Who says paper dolls don't have moves?
11:38Wow.
11:39This really puts a new spin on things.
11:42I think Mira likes her new mini-me.
11:48Passing notes in class?
11:50Not in his class.
11:52Oh, roomie.
11:54Haven't you heard of texting?
11:57Well, maybe Derpy can help you out.
12:02He might seem a little two-dimensional.
12:07But he's always here to help keep your secrets.
12:13A teeny tiny BFF note.
12:16You know what that means.
12:19A teeny tiny envelope.
12:25Quick.
12:26Give it to Derpy.
12:28And hide it in your mouth.
12:30Try not to swallow.
12:32Here, Mira.
12:35Nothing to see here.
12:37What?
12:37She's just taking care of the class pets.
12:44Aw, Mira.
12:46You're roomie's best friend forever.
12:50You know, the Saja boys have some redeeming qualities.
12:55But maybe we should keep that to ourselves.
12:59Let's just save a piece for later.
13:07No guess which Saja boy roomie picked.
13:13And add some special ingredients.
13:16Like glitter.
13:19Nothing can be truly bad when it comes with glitter.
13:25Including our brand new sticker.
13:28Make that stickers.
13:30Make that stickers.
13:33Hey.
13:34Just don't forget to share the love.
13:43Looks like Mira's got a new gadget.
13:48Cool.
13:49A new phone.
13:51Make sure it's charged.
13:55Fully charged.
13:57Now for something really important.
13:59It's time to customize.
14:01Complete with a Mira sticker.
14:04And what's the fun of a phone without games?
14:07Careful now.
14:08This round goes to the Saja boys.
14:13Looks like roomie wants a new phone too.
14:18But don't get upset.
14:19Get crafting.
14:21And make your own phone.
14:25It doesn't need charging.
14:27And it keeps your pencil sharp.
14:31Honestly, you can't get a better phone deal than this.
14:37And clean up couldn't be any easier.
14:42Careful.
14:43Everyone can see your wallpaper.
14:48Roomie's got a case of Butterfingers today.
14:51Don't worry.
14:53Mira's got your back.
14:57Complete with a simple paper craft.
15:02With the right turns,
15:04you've got a brand new pencil case.
15:10Sassy here will help you hide it in plain sight.
15:13Always good to keep a few eyes out.
15:17Here.
15:18There's plenty of room for all of your pens.
15:22Cool.
15:23Wow.
15:31Did you study for the big math test?
15:35That answers that.
15:38I wonder if Mira's doing any better.
15:41Guess so.
15:43Yay.
15:44Can you help, roomie?
15:46It's too late for tutoring.
15:48But some tests let you use some special tech.
15:53So why don't we whip up a special calculator for roomie?
16:00Just make sure you seal it up on top.
16:03And add the derpy seal of approval.
16:06And add the derpy seal of approval.
16:07Wow.
16:09Fill her up.
16:10After all, calculators need a little program.
16:13Yeah.
16:16Time to take it on a test run.
16:22Great success.
16:24Only thing easier is if it wrote the answers for you.
16:33Careful.
16:34No gum in class.
16:35Oops.
16:37Seriously.
16:37We lose perfectly good rulers this way.
16:40Hmm.
16:41Uh-huh.
16:42Mira's got an idea that epaulets aren't just fashionable.
16:46They're great for hiding crafting supplies.
16:49And there's always room for glitter.
16:53Bend all you want.
16:54This ruler won't snap.
16:57Eh?
17:00Measure, draw a straight line, and sparkle while doing it.
17:04Uh-huh.
17:05This totally deserves some stickers.
17:15Uh-oh.
17:16Looks like you're getting a manicure.
17:19Hey.
17:21Roomie knows what you need.
17:23Boba.
17:24Which is hiding our secret blind bag.
17:27And inside, a nail file.
17:31But will it help?
17:37Wow.
17:38New color, too.
17:39Roomie deserves a big tip.
17:41But why not add a splash of color?
17:44Oh.
17:44How about purple?
17:46Okay.
17:50Just be patient.
17:51It takes a while for the color to show.
17:54Of course, it also pays to let your nails dry.
17:59Yay.
18:01Soon, your nails will look as good as new.
18:04But there's always room for some stickers.
18:09There's room for all your favorite Huntrix members.
18:15And a few of those Saja boys, too.
18:21Zoe, roomie, you're not supposed to run for real fights.
18:25No, wait.
18:27That's Sailor Moon.
18:28But still, you're Hunt, Red, and Seek.
18:31Especially when you're hiding from demons.
18:34Uh-huh.
18:36And look.
18:37There's a way out on the other side.
18:40But I wonder where it leads to.
18:44Wherever this is, the decorators seem to be fans.
18:47Wow.
18:49Of course, who isn't?
18:52So why don't you do that voodoo you do so well?
18:57Your turn, roomie.
18:59Besides, a little stretching always pays off.
19:06And it's just so much fun, too.
19:11Especially with a little elbow grease.
19:15For our next trick, we're going to need some kinetic sand.
19:19Place it in a mold so we can keep it all in a circle.
19:26Pat it down nice and smooth.
19:34And cut out a smaller circle.
19:36Cause now you'll get a range.
19:41Which you can fill with more sand.
19:45Keep it coming.
19:46We'll tell you when.
19:49When!
19:51Smooth it out.
19:52Make sure to leave room on the top.
19:55So we can cover it up with some more pink.
20:01Flatten it into place.
20:03It's like a mini cake.
20:08Which makes it the perfect topper for an even bigger cake.
20:12Happy birthday, roomie.
20:14Why don't you make a wish?
20:17Yay!
20:21Spiders and worms?
20:23I don't think she wished for that.
20:25Oops.
20:26Still, we can't let a good cake go to waste.
20:31Don't worry, roomie.
20:33Here's someone who could help.
20:35Who knew a big mouth could come in handy?
20:39What a good gator.
20:43Ooh, Zoe's got the tea.
20:46But do we have some tea for her?
20:51Zoe's here to help.
20:52Start by drawing something cute on a plate.
20:57And you don't get any cuter than derpy.
21:01Especially with a big pink tongue hanging out.
21:06Next, cover it up with some sticky glue.
21:10Especially glitter glue.
21:12Yes, the glitter's important.
21:17Now make sure to spread it around the plate.
21:22Yay!
21:23Okay, roomie.
21:24Why not give it a pinch to grow an inch?
21:29And see just how far you can make it stretch.
21:35Of course, a true artist makes art spring to life.
21:40The Saja boys might not be the nicest company.
21:47But they can still be fun to have around.
21:52Cool.
21:56But he'll live on as precious, precious slime.
22:01And he's the perfect shade for roomie's hair.
22:07It looks nice.
22:09But something tells me roomie's got her sights elsewhere.
22:14Yeah, it's hard to compete with Geno.
22:17But this gives me an idea for her eyes.
22:20Either that or corn on the cob.
22:25Just kidding.
22:27We're saving that for Zoe.
22:31Roomie is sure going to be red in the face.
22:35Don't worry.
22:36Told you we had a backup.
22:39And look.
22:40This corn already comes with oil.
22:45But you gotta provide your own butter.
22:49Try some popcorn.
22:53Always more where that came from.
22:57We'll help you share your thoughts with the world.
23:01And Zoe can help.
23:02We need a can for our fan.
23:11Use it to make a container and fill it with all those water bees.
23:22Seal it up nice and tight.
23:24And save that tab for the top.
23:27Now give your new can a tight squeeze.
23:33Careful though.
23:34We don't want to smudge that face.
23:37Wow.
23:42Hey girls.
23:44Still need something to do?
23:45Yay!
23:48We got a cool new fidget board for you.
23:53You can comb Mira's hair.
23:55Where is she anyway?
24:00Oh.
24:00She was hiding behind her bangs the whole time.
24:04And there's always room for accessories.
24:09Why don't you play with Derpy next?
24:11He's always a good time.
24:14The one time it's okay to stick your tongue out.
24:21You can knock this down.
24:23Just put it back up.
24:25Of course, nothing's more fun than rawm.
24:30Besides, there's always room when it comes in fun size.
24:35Just add veggies and spicy seasoning.
24:41Of course, hot water really gets things cooking.
24:48Sure, this might be Rumi's favorite flavor.
24:52But aren't friends supposed to share everything?
24:59Start by opening up our wooden roller.
25:03Now lay down dried seaweed, rice, and your favorite fillings.
25:09Next, it's time to let the good times roll.
25:14And things don't get better than Gimbop.
25:18This stuff is good to the last gulp.
25:26There's no use crying over spilled blue stuff.
25:31But I'd understand crying over a ruined manicure.
25:37We can fix this.
25:39Red-handed's more traditional.
25:43And we can use it to make some fun handprints.
25:49Turn it over and you can make something new.
25:55Like a pair of two best friends.
25:58Who are probably waiting for their third friend.
26:02Don't forget to add some other colors.
26:05Or wait for monochrome to go back in style.
26:09Ah, friends don't need an excuse to give each other gifts.
26:15Rumi's got a special K-pop demon hunter's meal.
26:21And her own paper doll.
26:23Look, Genu's here too.
26:27Let's bring these two together.
26:29Truly life-imitating fan art.
26:33Oh no!
26:34The demons have got Genu captured.
26:39Look, it's Derpy.
26:41Aw, but you're all messy.
26:44Don't worry.
26:45We can help clean you up.
26:47Just hope blue demon tigers aren't dry clean only.
26:53Let's clean out those ears.
26:58And squeeze in a mani-pedi.
27:05Feeling hungry?
27:06Let's hope you're in the mood for tuna.
27:11Guess Derpy's just a big cat at heart.
27:17Which means we need to keep an eye on your plants.
27:22Hmm, Derpy could use a distraction.
27:27So, here's a ball of yarn to work out those claws.
27:31And to say thanks, it's the first key.
27:35Next up, Rumi's competing with the Saja boys.
27:40But first, let's see what game we're going to play.
27:47And the scroll reads,
27:49A dance battle?
27:51Okay then, cue the music.
27:54And put your skills to the test.
27:58Even without Genu,
28:00these demon boys sure can boogie.
28:06And it looks like the judges agree.
28:08Whose side are you on, Rumi?
28:14Well, now it's mini-Rumi's turn.
28:17Crank up the volume.
28:22But first, she's going to need some backup.
28:27Zoe, Mira, you're on.
28:30Hmm, they could use a little spark.
28:34And I'm not just talking about inspiration.
28:40Now that's what I call an electric slide.
28:53Let's show them what they've won.
29:00Let's show them what they've won.
29:08Well, let's hit up a convenience store.
29:12Let's keep an eye out for some cool snacks.
29:17Looks like we've found our little soda pop.
29:23And who can say no to some gimbop?
29:29We can't forget the ultimate snack.
29:32We can't forget the ultimate snack, Ramayun.
29:34Of course, you can't have Ramayun, sans toppings.
29:39Like the all-time Zoe fave, a burger.
29:44Now let's fuck tradition and play with our food.
29:52Try to match everybody with their snack.
29:58You know this is Mira's.
30:00She's got her name on it.
30:02And she likes her stuff extra spicy.
30:07Here, wait until you try the special ingredient.
30:13Okay then, back to the game we go.
30:17Looks like Zoe's getting the gimbop.
30:22With a side of shrimp sushi, too.
30:28What's Rumi having for lunch?
30:32A sandwich cookie.
30:36They're so good.
30:38You just can't stop at one.
30:40So it's important to chew your food.
30:44Not that hard.
30:45Ooh, you lost a tooth.
30:48But you gained something better.
30:50A key.
30:51There's the next one.
30:54Wait, this all seems a little too easy.
30:59Either way, there's a dress code in here.
31:03Well, at least they give you a locker for your stuff.
31:10And they don't make you share it like in school.
31:19Well, it's time to hit the jacuzzi.
31:22You see the hand, right?
31:26Either way, grab your snorkel and dive on in.
31:34Uh-oh, there's demons in the water.
31:38Well, it's nothing our mallet can't fix.
31:44Never know what could be lurking beneath the bubbles.
31:51Honestly, this place could use a filter or something.
31:59Maybe we'll have better luck with whatever's in here.
32:05Hmm, there's something behind this demon.
32:10It's the rainbow key.
32:12Great, now let's get out of here.
32:17The sewer?
32:18Don't have to ask me twice.
32:20Let's jump in.
32:22Hey, it's the Saja boys.
32:25They might look cute.
32:27But true beauty is really on the inside.
32:32Especially when that true beauty shows up in photos.
32:42Well, Rumi, it's time to put those K-pop demon hunting skills to work.
32:50Sorry, Saja boys.
32:52Weema can't save you now.
32:55Though you're kind of better off without her.
33:00And look, you've won a key.
33:02Let's save Genu.
33:07Almost done.
33:08Now you're as golden as Han Moon.
33:12Finally a happy ending.
33:14But do you think we'll get a sequel?
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