Whether you're looking for a quick and easy costume [1] or you want a prop for your fantastic pop culture costume [2], we've got plenty of ideas and inspiration here for $20 or less. Paired with some clothes and accessories you already own, you'll be the hit of the party — and nobody has to know you shelled out next to nothing to look so put-together.
Cozy Unicorn
Wear your comfiest onesie, put some glitter on your face, and plop this unicorn headband [4] ($10) on your head and you have your costume — the coziest unicorn at the party!
GLOW Lady
A fun updo, this gold bodysuit [5] ($15), and cool sneaks (with scrunchy socks!), and you're a wrestler from GLOW.
Comfy Wonder Woman
You'll be the most laid-back Wonder Woman at the party in this t-shirt and headband [6] ($18).
Bojack Horseman
All you need to be Bojack Horseman is this horse mask [7] ($9) and your own blazer.
Serena Williams
Wear a white skirt and an athletic shirt. Carry this tennis racket [8] ($11). Boom — you're Serena Williams.
The New Taylor Swift
Put on some red lipstick and answer your phone [9] ($11) by saying you can't come to phone right now. Why? Oh, you're dead!
Kylie Jenner (or whatever Instagram icon you want)
Throw on a sports bra, carry around some "fitness tea" in a plastic cup, and flaunt your assets in these leggings [10] ($13).
The Bachelorette
Wear the last dress you wore to a wedding and carry this red rose [11] ($8) all night. You can choose who gets it when the night ends!
Princess
All you need is this gorgeous gold crown [12] ($18) and a flowy dress and you're a pretty princess!
Classic Cat
It's an oldie, a goodie, and it never fails. Grab these clip-on cat ears [14] ($15) and some black leggings and you've got your costume done.
Holly Golightly
Put on your boyfriend's dress shirt, slide this eye mask [15] ($17) on your head, and sing "Moon River" softly all night!
Spooky Doll
These creepy-cool glasses [16] ($8) blink for you, turning you into an instant doll!
Baywatch Babe
All you need is a red bathing suit [17] (originally $29, now $20) for this iconic costume.
Masquerade Dancer
Add an air of mystery to any costume with this masquerade mask [18] ($18).
Flower Child
Don a light, flowing dress and place this flower crown [19] ($18) atop your head, and you'll be the perfect 70's flower child.
Pokémaster
Grab this Pokéball [20] ($10) and a backpack and catch 'em all!
Raggedy Ann
Pair this wig [21] ($12) with a blue dress and you're Raggedy Ann.
Magician
Snag one of these beautiful wands [22] ($14) and drape yourself in a long, dark coat (or cape) and you'll make magic all Halloween [23].
All Tatted Up
Fulfill your dreams of being an inked badass and make a sleeve out of these realistic-looking tattoos [25] ($9).
Pretty Witch
Wear this unique witch hat [26] ($13) with a long black dress and carry a broom — you'll be the coolest witch at the party.