3.14159265359 ... Pi day (March 14)
A Pi plate, you know, for pie you can eat. We give it 3.14 stars!
Come to the Math Side T-shirt
Forget the dark side and their cookies, the math side has pi.
Pi Hole Spatula
Misha Collins’ spatula for No Kid Hungry charity is just what SPN fans need to make all those apple pies.
Pi-lingual Coffee Mug
Are you Pi-lingual?
Pi Luggage Wrap
Show off your irrational spirit while traveling.
How To Bake Pi Book
An irrational cookbook wrapped in a mathematics textbook.
Pi Math Adventure Book
Follow the adventures of Sir Cumference, Lady Di of Ameter and Radius in this series for students.
Some, but not all of these items are through affiliate links.