In the beginning… there was only one opportunity to exchange presents with your fellow redditors: Secret Santa. Then came Arbitrary Day, followed by subreddit exchanges, and finally so many exchanges for every theme imaginable that Reddit Gifts is now on its 400th gift exchange!

To celebrate the occasion, the Reddit Gifts team has decided to throw an exchange based around—what else?—the number 400.

400 of what, you ask? Well, that’s for you to decide, be it a painting of 400 duck-sized horses, a copy of François Truffaut’s cinematic masterpiece The 400 Blows, or simply a non-numerical present that you think will bring cheer to another redditor’s day.

If you’ve never signed up for an exchange before, worry not! Now’s the perfect time to join, and we promise the sign-up process is quick ‘n’ easy. Just create an account here, then sign up for an exchange here. (Questions? Check out the FAQ or stop by r/secretsanta, the official Reddit Gifts community.)

But before you go all in for our 400th Exchange Extravaganza, you might want to check out all the new exchanges first to see which one catches your eye.

‘80s Babies

Remember the ‘80s? The decade that brought you films like The Breakfast Club and Back to the Future. Timeless styles like neon fanny packs and scrunchie-clad side ponies. Oh, and we certainly can’t leave out the unforgettable historical moment that defined the entire decade. If you want to take on meee-aningful gifts from other karma chameleons who never stopped believin’ in having the time of their lives, let us sign you up, before you go-go.

The eSporting Life

Grab your keyboards and mice (mouses? meese?), because we’re assembling the largest eSports gift exchange of all time! Whether you’re a fan of DOTA, StarCraft, or League of Legends, this exchange plays well for all fans of global gaming tournaments.

Fantastic Gifts (And Where to Exchange Them)

Do you like extraordinary beasts like nifflers and ice dragons? Sword and sorcery? Witchcraft and wizardry? If you’ve ever secretly cast a spell hoping Reddit Gifts would create a gift exchange just for you, congratulations: it worked! Now’s your chance to explore new worlds with a fellow fan o’ fantasy.

Fidget Jones’s Diary

Yes, we created an entire gift exchange for fidget toys, but before you judge, hear us out. “Fidget toys,” no matter what form they take—such as the overly meme-ified fidget spinners of yesteryear or the less often sighted fidget cubes—are small handheld thingamajigs that many people find therapeutic. They can also be collectible and fun to play with, so whaddya say? Give it a spin.

Dr. Snoo

Calling all Time Lords! The TARDIS has finally returned, bringing the Dr. Who exchange back with it. If you love picking out bowties or finding just the right sonic screwdriver for a fellow Whovian, don’t wait to join this exchange. Allons-y!

Cross Your Tees

Do you wear t-shirts? Of course you do! No matter what your personal preferences in tees may be—ironic, artsy, statement, deep-v, or just a classic plain white tee—this exchange can help you get past any “no shirt, no shoes, no service” sign with style (*shoes not included).

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Imagine all the awesome gifts that’ll be passed from one end of the globe to the other in this match-up: Manchester fans exchanging with Arsenal fans, Sounders fans with Earthquakes fans, Brazil fans with Germany fans… If you miss this exchange, trust us: you’ll be kicking yourself later.

Take Me Out to the Gift Exchange

Step up to the plate, baseball fans—it’s your turn to swing for the fences! Tell us about your hometown favorites and home-run heroes. Are you a fan of AAA? MLB? Perhaps a South American or Japanese league? Will you root, root, root for the Sox? The Cubbies? Sign up today and knock this exchange out of the park.

Wrasslin’

In 2016, Reddit Gifts presented its first ever wrestling-themed gift exchange. But in 1998, The Undertaker threw Mankind off Hell In A Cell and plummeted sixteen feet through an announcer’s table.

The Longest Yarn

Calling all knitters, weavers, and Jim Crochets! Before these sign-ups are sewn up, join our 7th annual yarn exchange. Send and receive fabulous fibers from around the world, knowing your giftee will turn it into a beanie, a pair of socks, a beautiful blanket, or just a really valiant effort at some kind of amorphous hat-ish, glove-y, mitten-esque blob…

On the Chain

Can’t find your keys? Never lose them again with the help of an awesome, eye-catching keychain. This exchange could become your low-key favorite.

The Missing Piece

Does the sight of a table full of jigsaw pieces delight you? Never met a riddle you didn’t like? Do you prefer Rubik’s Cube to Ice Cube? Well, the puzzles exchange could be a perfect fit. The only thing missing is you.

Sign up for one (or more) of these great gift exchanges today!