We’ve all seen it: the last-minute “witch hat and black dress” look that screams, I forgot until 4 PM.
It works, but if you’re a teen girl in 2025, you want something cute, trendy, easy to assemble, and Instagram-worthy.
Here’s the good news: you don’t need a sewing degree, a big budget, or hours to create your Halloween look.
The best costumes are stylish, creative, and comfy for parties, trick-or-treating, or snapping photos with friends.
Over the years, I’ve helped friends (and friends of friends) find DIY costumes at thrift stores, in closets, and with dollar-store finds.
Now, I’m sharing 13 of the cutest, trendiest, and easiest DIY Halloween costumes for teen girls—plus tips to make each one your own.
1. 90s Rom‑Com Main Character 📼💖
Why It’s Trending
The 90s are back, baby — and Pinterest boards everywhere are loving the grunge‑meets‑preppy aesthetic.
How to DIY
- Mini skirt + oversized cardigan or blazer.
- Chunky sneakers or combat boots.
- A tiny handbag (the more impractical, the better).
- Hair clips or scrunchies.
Pro tip: Recreate your fave teen movie poster pose for the ‘Gram.
2. Fairy‑Core Princess 🧚♀️🌸
Why It’s Cute & Easy
Flowy + sparkly + pastel = instant magic.
How to DIY
- Flowy dress in pastel or earthy tones.
- Sheer scarf as makeshift wings or cheap clip‑on fairy wings.
- Glitter makeup + flower crown.
Extra tip: Use a little highlighter on your collarbones and shoulders for that ethereal glow.
3. Glam Skeleton ☠️✨
Why It Works
It’s spooky season, but make it fashion.
How to DIY
- Black long‑sleeve top and leggings.
- White fabric paint or skeleton stencils.
- Add rhinestones along the “bones” for glam points.
FYI: Looks amazing under black light.
4. Cottagecore Witch 🪄🏡
Why It’s Popular
It’s the cozy alternative to the classic witch look — all about soft fabrics and earthy vibes.
How to DIY
- Flowy midi dress in deep autumn colors.
- Wide‑brim hat (decorate with dried flowers or ribbon).
- Layer with a shawl or cardigan.
Vibe check: Think “witch who bakes pumpkin pies for the village.”
5. E‑Girl Vampire 🖤🩸
Why It’s So 2025
Mix TikTok style with gothic Halloween drama.
How to DIY
- Plaid skirt + oversized band tee or mesh top.
- Black boots + fishnet tights.
- Dark eyeliner, smudged lipstick, and fake vampire bites with a red lip tint.
Bonus: Add chain accessories for extra edge.
6. Greek Goddess 👑🏛️
Why It’s a Forever Favorite
It’s classy, flattering, and can be made in under 30 minutes.
How to DIY
- White dress or sheet draped into a toga style.
- Gold belt or ribbon.
- Gold jewelry + leafy headband or crown.
Extra: Dust shimmery eyeshadow on your shoulders for goddess sparkle.
7. Angel vs. Devil BFF Duo 😇😈
Why It’s Fun
Great for matching with your bestie — and you can swap roles halfway through the night.
How to DIY
- Angel: White dress, halo headband, soft makeup.
- Devil: Red dress or top, horns, bold eyeliner.
Pro tip: Carry matching props — feather for angel, pitchfork for devil.
8. Pop Art Comic Book Character 💥🎨
Why It Turns Heads
The makeup alone makes it a masterpiece.
How to DIY
- Bright dress or retro‑style outfit.
- White face dots (face paint), thick black eyeliner outlines.
- Speech bubble on cardboard glued to a headband.
IMO: The bigger the “WOW!” bubble, the better.
9. Mermaid Glam 🐚🌊
Why It’s Magical
Sequins + shimmer = party show‑stopper.
How to DIY
- Sequin skirt or leggings.
- Shell top or pastel tank.
- Iridescent makeup, starfish hair clips.
Optional: Spray a little glitter hairspray for that underwater sparkle.
10. Space Cowgirl 🤠✨
Why It’s Fresh
Country meets cosmic — TikTok LOVES it.
How to DIY
- Cowboy hat (sprinkle with glitter or rhinestones).
- Metallic skirt or shorts.
- Fringe jacket or vest.
Accessory alert: Neon toy ray gun for Instagram gold.
11. Retro Diner Waitress 🥤🍔
Why It’s Adorable
It’s nostalgic and flirty, without being over the top.
How to DIY
- Skater dress or fit‑and‑flare dress in pastel.
- Apron + paper hat (you can fold one from cardstock).
- White sneakers or saddle shoes.
Extra idea: Carry a tray of faux milkshakes for photos.
12. Rockstar Rebel 🎸🔥
Why It’s Effortless
Half your closet probably already qualifies.
How to DIY
- Ripped jeans or leather skirt.
- Band tee + layered chains.
- Smudgy eyeliner + bold lipstick.
For fun: Temporary tattoos complete the look.
13. Dark Academia Schoolgirl 📚🖤
Why It’s Trending
Perfect for moody fall weather and bookworm vibes.
How to DIY
- Plaid skirt + turtleneck or button‑down.
- Blazer or cardigan.
- Tights + loafers.
Vibe: Like you stepped out of a haunted library romance novel.
Tips for DIY Halloween Costumes That Look High‑Effort (But Aren’t)
1. Shop Your Closet First
You’d be surprised how much costume potential hides in your everyday clothes.
2. Thrift Like a Pro
Thrift stores are gold mines for one‑of‑a‑kind pieces that make your costume stand out.
3. Accessorize Like Crazy
Props, jewelry, hats, and makeup can turn a simple outfit into a head‑turning costume.
4. Comfort = Confidence
You won’t enjoy the night if you can’t breathe, walk, or dance in your costume.
Why These Costumes Work for Teenage Girls
They’re cute without being overdone, on‑trend without being unwearable, and easy to DIY so you don’t need to drop your entire allowance on one night of fun.
Plus, each one lets you inject your own personality into it — whether that’s with extra sparkle, bold makeup, or a touch of humor.
Final Thoughts — Own the Night, Your Way
Halloween isn’t about who spent the most or who copied the “most pinned” outfit. It’s about showing up in something that makes you feel confident, happy, and ready to eat too much candy.
So pick your favorite from these 13 cute, trendy, and easy DIY Halloween costumes for teenage girls, add your own twist, and get ready to have strangers ask, “OMG, where’d you get that?” The best answer? “I made it.” 😉
