Mom Jeans
You don't even have to go shopping to recreate this hilarious commercial. Dip into your collection of mom jeans, then throw on a pastel top. Bonus points for the Kris Jenner haircut.
What you'll need: Levi's Wedgie Icon, $98, Aritzia
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Melissa McCarthy as Sean Spicer
Getty Images This sketch is probably one of the most memorable scenes in modern SNL history. Dress up as Melissa dressed up as Spicey and then cry over the tragic state of our government.
What you'll need: Jacquard Boyfriend Blazer, $50, Old Navy
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Lonely Island's "Dick in a Box"
There are few SNL scenes more iconic, more get-caught-in-your-head than "Dick in a Box." Honestly, you could wear anything and no one would notice, as long as you've got the box.
What you'll need: Flecked Suit Blazer, $60, Mango
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Coneheads
Getty Images Only true SNL fans will recognize this iconic skit. The costume itself is easy – just throw on typical '90s clothes – it's the DIY conehead that will be tougher to make. Anyone with papier-mâché skills can create the dome with just a few craft materials.
What you'll need: Geo-tribal Chunky Sweater, $45, ASOS
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The Weekend Update
NBC A classic skit that makes a really easy costume. Literally just put on a suit and say "this is the Weekend Update" all night long. If you want to put a little more effort into your look, DIY the iconic global background with a big piece of blue poster board.
What you'll need: Double-Breasted Blazer, $80, Macy's
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Wayne's World
Getty Images This classic Saturday Night Live sketch is so ionic that it literally got it's own spin-off movie. Grab the Garth to your Wayne, throw on ripped skinnies, flannel shirts, and a couple of mullet wigs – BOOM. Costume completed.
What you'll need: Georgia Mum Jeans, $62, Showpo
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Spartan Cheerleaders
Getty Images Who's that Spartan in my teepee? It's YOU this Halloween. Grab a vintage cheerleader costume and start practicing your best Will Ferrell.
What you'll need: Chunky Mesh Sneakers, $59, Charles & Keith
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Ariana Grande as a Mermaid
Getty Images There are few things I stan harder than Ariana Grande and deep-sea mythical creatures. This combination of both is truly iconic. Get your significant other to dress up as a fisherman for an epic couples costume.
What you'll need: Disney "The Little Mermaid" Seashell Swim Top, $19, Hot Topic
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Lonely Island's "I'm on a Boat"
Your friends probably blared this song from every available stereo for months after this sketch aired. The boys wear preppy staples you probably already have in your closet, making this the perfect DIY costume.
What you'll need: Island Resort Button-Down, $10, Aeropostale
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Any Pete Davidson Character
NBC This look is an easy one to recreate. Just dress up like your favorite of Pete's characters and slap on some temporary tattoos.
What you'll need: Temporary Tattoo Sheets, $2, Tiny Tats
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The Californians
Anyone with a pair of khaki pants and sunglasses can pull off this costume. Plus, it gives you an extra reason to get highlights. It's a win/win!
What you'll need: Bi-Stretch Twill Blazer, $35, Target
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"I Wish It Was Christmas Today"
The holidays are starting extra early this year. Recreate the Christmas classic with burgundy sweaters for your whoooole crew.
What you'll need: Soft Cotton Boatneck, $68, Everlane
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Stefon
Arguably one of the best, most outrageous characters in SNL history, Stefon's persona is perfect for Halloween. Recreate his wedding look – veil and all – for a hilarious costume fans will freak for.
What you'll need: Stefon Tattoo Long Sleeve SNL Tee, $35, Halloweencostumes.com
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Welcome to Hell
There's no better time to visit Hell than Halloween, amiright?! Pile on the pinks, metallics, and rhinestones for a look that's weirdly kind of on-trend.
What you'll need: Naven Stella Dress, $52, Revolve
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A Girl's Halloween
This video is a beginner's guide to a basic Halloween. Team up with your friends to be two mice and their cheese.
What you'll need: Cheesehead Hat, $28, Walmart
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Kelsey is Seventeen.com's fashion expert and resident Harry Potter nerd. At the office, she spends her day writing about style, beauty, and literally every move Kylie Jenner makes. On the weekends, you can find her sifting through vintage shops and hunting for the perfect burger. Follow her on Instagram at @klstieg.
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