Today, friends, is Pi Day. It’s also Albert Einstein’s birthday. It is, by all accounts, a great day to be a nerd.

To honor the mathematical constant—and the dude who gave us his theory of general relativity as well as a sweet emoji keyboard—we put together a list of awesome, ridiculous (and at least one pretty gross) things to celebrate Peinstein Day. #PeinsteinDay. Let’s make Peinstein Day a thing.

Marvel at this Pi shirt

What’s better than combining Pi day with your excitement over the release of Avengers: Infinity War on April, 26th? Nothing. This 100 percent cotton shirt has Pi in the shape of Captain America’s shield. It might be the geekiest thing we’ve ever seen… and we love it! $14. Amazon

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One on point clock

OK sure we all check the time on our phones, but that doesn’t mean this clock isn’t awesome. If you are one of those people that still glances at wall clocks, if you love math, and if you are a grown-up person who can read the time without every number on a clock’s face—this is the clock for you. At your house, it’ll always be Pi time. $40. Etsy

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A mug and shirt with a great blend

This double side Pi coffee mug and matching shirt are hilarious, honestly. The beautiful blend of Star Wars and math pairs perfectly with your morning cup of joe. Amazon

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Not that kind of smart utensil

A pencil for cheating on your math test. This No. 2 graphite pencil will be your No. 1 writing choice. $30 for 30. Etsy

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A loving spoonful

Take spooning to a whole new level with this loving utensil. Cute. $18. Etsy

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A geeky tie bar

Usually, it’s embarrassing to have pie on your shirt. Wear this aluminum pi tie bar with pride. $15. Etsy

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A pi pie dish

Choose between two Pyrex Pi pie plate styles. There is a regular 9′ pie plate or the 9.5′ deep pie plate. Each can be personalized and is made with just the right amount of love and math. $20. Etsy

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A math-themed pillow

Pi don’t believe it. A mathematically sound pillow? Grab one of these off-white canvas Pi pillow covers with black vinyl print. It comes in two sizes—16×16 or 20×20— and the option to buy with or without a pillow insert. $18. Etsy

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Appreciation gone way too far

THIS IS REAL. We found this and we needed to post it. It seems the appreciation of Einstein){rel=nofollow} goes beyond that of books, style ideas, and scientific inspiration. Happy birthday this guy. $70. Etsy

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A book for young Einstein enthusiasts

This biography—aimed at kids in the 3rd to 5th grades—will teach your child about Albert Einstein’s life beyond his contributions to science.$6. Amazon

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A book that has nothing to do wit Pi

Alright, alright. Not the same Pi, but still a great book. $10. Amazon

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A sweet taste of Pi

Pi is a small number that goes on forever. Learn how to make some small pies that definitely won’t last forever. $20. Amazon

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