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Panic-Free Last-Minute Halloween Costumes

Halloween is right around the corner! When it’s the week before and you’re still scrambling for an idea, putting together a costume can feel like one of the year’s most daunting tasks. Here’s how to save yourself from going a little mad: use pieces from your own closet! With some handy dandy DIYing and a quick trip to the thrift, you can transform everyday staples into the perfect last-minute Halloween costume. Keep scrolling for low-stress, high-impact costume ideas!

A group of people poses in their Halloween costumes, half of them dressed up as devils and the other half as angels

Raise Some Halo as Devils & Angels

Whether you’re feeling saintly or ready to embrace your dark side, this costume’s got you. Pull out an all-white or all-black outfit from your closet, add a quick halo or set of horns and your last-minute Halloween costume is sorted. Go solo or gather your whole squad! What side is calling you?

A group of 5 women dressed up as bikers for Halloween lean against a brick wall.

Born to Be Wild

Hit the open road without ever leaving your closet. Layer up with heavy hardware, dark shades, and all the leather you own, and you’re ready to rev up this effortlessly cool last-minute Halloween costume. For a Super Troopers deep cut, make this a couples costume, with one of you dressing as a moto biker and the other wearing a bicycle helmet & jersey. 

Two people reenacting a scene from the 2026 movie Obsession.

Careful What You Wish For

You only get one wish – and if that’s embodying the haunting energy between Nikki and Bear from Obsession, it’s easily said and done! Grab a couple of sweaters, maybe a phone or a DIY’d one-wish willow as a prop, and this quick and easy last-minute Halloween costume will make your wish come true. Hopefully it’s really what you wanted…

A close-up of a woman dressed as a fish for Halloween, with DIY gills and glittery makeup.

Swim With the Fishes

There are plenty of fish in the sea, but that doesn’t mean you can’t stand out as one! Pick a color and run with it – maybe a silk or sequined dress, or a flowy skirt and top. Use what you have in your closet or stop by the thrift to complete the look. Grab a piece of construction paper to DIY gills, add some glitter, and you’ll school everyone with this last-minute Halloween costume.

A woman dressed up as a fish for Halloween in a flowy, sequined top and long denim skirt.

Working 9-to-5: Dolly Parton

Ready to be a diamond in a rhinestone world? Look no further than the icon herself. Round up your best denim, a pair of boots and a nice blouse, and your last-minute Halloween costume will be complete before you know it!

A flat lay of a Shrek costume composed of pieces thrifted from Buffalo Exchange.
A person dressed up as Shrek smirking at the camera.

Get Outta My Swamp!

Ogres are like onions, and your last-minute Halloween costume is about to have layers! Channel everyone’s favorite swamp dweller by combining earthy greens and browns, and a quick DIY set of ogre ears for a costume with true depth.

Don't Bug Me

Spotted Lanternflies still living rent-free in your mind? Release them (in a non-invasive way) by making them your last-minute Halloween costume muse. Pull those polka dots out of your closet, or DIY by adding white spots on black. Don’t forget a pop of red!

Two people in DIY Spotted Lanternfly costumes.

Cabs Are Here!

GTL: Gym, tan, last-minute Halloween costume. Obviously. Grab your Y2K staples – think loud patterns, tank tops, and oversized sunglasses – for an iconic Jersey Shore throwback look that practically assembles itself. 

It's-a Me, Your Last-Minute Halloween Costume

No Super Mushroom required to pull this classic off! Whether you go with red or green, grab a matching-colored hat and some crafting supplies, and you’ll move through the night in record time with this last-minute Halloween costume.

One person dressed up as Mario for Halloween, two as Luigi

If you’re just missing those final few tricks to make your last-minute Halloween costume hypnotizing, don’t fret – Buffalo Exchange has your back. Stop by to hunt down vintage scores, one-of-a-kind statement pieces, and all the accessories needed to make your look stand out. Better yet, save some mummy this Halloween by bringing in your closet cleanout: trade in those unworn clothes hiding in your closet to score cash or trade toward your new spooky season staples. Selling with us now through October 31st could be your chance to win a frightfully fun $200 shopping spree!

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