ThinkGeek is having a huge Pi Day sale: Save 31.4% on merch from Star Wars, ‘Game of Thrones,’ and more

Happy Pi Day — also known as the most important made-up holiday in the geek world, aside from May the Fourth of course.

ThinkGeek is celebrating with a sitewide sale: Just use code PIDAY19 to get a very appropriate 31.4% off everything (except for pre-orders). We’ll cheers to that.

There’s something for every type of geek here, whether it’s a Rick and Morty Plumbus replica, a Star Trek Bluetooth Communicator, or Harry Potter underwear. When it’s from ThinkGeek, you know it was approved by a real fan — and it’s stuff you won’t find anywhere else.

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