Happy Pi Day! Celebrate With These Quirky Finds

Protect your phone in humor using this Pi iPhone 5 case ($38).

You'll always know when it's pi o'clock thanks to this fun and simple pi wall clock ($30).

It's geeky-meets-classy with this engraved leather pi flask ($21), perfect for a National Pi Day party.

These vegan, scented pi soaps ($5) come in three flavors, including — what else? — apple pi, pumpkin pi, and cherry pi.

Spritz on a holiday-appropriate scent with Pi Cologne by Givenchy ($50) — an infinitely cool cologne with sleek, sophisticated packaging.

Give your morning brew a mathematical touch using this Pi mug ($14, originally $15).

Go green and geeky in this playful pi T-shirt ($26, originally $33).

Show some pi pride by wearing this brass pi cuff ($30), which is engraved with the first 144 numbers.

Celebrate National Pi Day by pouring your favorite brew into this festive pi pint glass ($15, originally $16).

Ever wish you could memorize part of pi? Do your best by using this pi pencil pack ($8) and reading the numbers while you work.

Learn all about pi, from its history to our cultural obsession, in David Blatner's The Joy of Pi ($12, originally $14).

Love this poster's ($14-$21) fun take on the move Life of Pi.

This pi bottle opener ($30) is sure to get friends talking when you bust it out.