20 Easy DIY Halloween Costumes for Adults on a Budget

You don’t need to spend a fortune on a costume shop trip to look great this Halloween. With items you probably already own — plus a few cheap thrift store or dollar store finds — you can put together a creative, budget-friendly costume in no time. Here are 20 easy DIY Halloween costumes for adults that won’t break the bank.

Classic & Simple Costumes

1. Black Cat
All you need is black clothing, cat ears, whiskers drawn on with eyeliner, and a tail made from black fabric or ribbon.

2. Ghost
Grab a white sheet, cut eye holes, and you’ve got the easiest last-minute costume of all time.

3. Scarecrow
Flannel shirt, overalls, straw hat, and some fake hay tucked into your sleeves and collar make for an instant classic.

4. Vampire
A black cape, white face powder, dark lipstick, and plastic fangs create a dramatic look for almost no cost.

5. Witch
A black dress, pointed hat, and striped tights (plus a broom if you have one) make this a thrift-store staple.

Pop Culture & Costume Duos

6. 80s Workout Instructor
Neon leggings, a headband, leg warmers, and a scrunchie — likely already in your closet or a quick thrift find.

7. Rosie the Riveter
A denim shirt, red bandana, and confident pose recreate this iconic look with almost no shopping required.

8. Flapper
A fringe skirt (easy to DIY from an old skirt), a feather headband, and a long pearl necklace nail the 1920s vibe.

9. Greek God or Goddess
A white bedsheet toga, gold rope belt, and a laurel wreath headpiece make an elegant, low-cost costume.

10. Mime
Black and white striped shirt, suspenders, and white face paint — a simple costume with big visual impact.

Funny & Punny Costumes

11. “Fashionably Late”
Wear pajamas and hold an alarm clock or sign — the ultimate lazy-but-clever costume.

12. Human Disco Ball
Cover a plain outfit in small mirror or CD pieces for a shiny, statement-making costume.

13. Cereal Killer
Wear all white, splatter fake blood, and pin empty cereal boxes to your shirt for a punny costume win.

14. Static Cling
Attach dryer sheets all over your clothes with safety pins for a costume that’s silly and cheap.

15. Two Peas in a Pod
Grab a friend, wear matching green outfits, and attach a large green fabric “pod” around you both.

Nostalgic & Character Costumes

16. 90s Kid
Bright windbreaker, fanny pack, and high ponytail with scrunchie bring back major throwback vibes.

17. Cowboy or Cowgirl
Flannel, denim, a bandana, and a hat (boots optional) make for an easy Western look using wardrobe basics.

18. Pirate
Striped shirt, a bandana, hoop earrings, and an eyepatch turn any closet into a pirate’s treasure chest.

19. Nerd/Geek
Suspenders, a bowtie, taped glasses, and a pocket protector make for a hilarious and easy costume.

20. Cereal Box Character
Print or draw a favorite cereal mascot on cardboard and wear it as a sandwich-board costume for a fun, punny look.

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Final Thoughts

Halloween costumes don’t have to mean an expensive shopping trip. With a few items from your closet, a quick thrift store run, or things you already own, you can create a costume that’s just as fun — if not more memorable — than something store-bought. Pick your favorite from this list, get creative, and enjoy the holiday without the price tag stress!