ThinkGeek :: Pi By Numbers. This T-Shirt has the first digits of pi!

Pi is your hero with this Super Pi T-shirt Math Pi T-shirts & More Show the world you are mathematically inclined with this fun t-shirt. ( A ComputerGear exclusive.

Come To The Nerd Side. We Have Pi.T-Shirt by SnorgTees. Men's and women's sizes available. Check out our full catalog for tons of funny t-shirts.

Life Is Meant For Amazing Sisters and Great Adventures

I Ate Sum Pi T-Shirt by SnorgTees. Check out our full catalog for tons of funny t-shirts.

Cow Pi T-shirt funny math shirt is for your favorite pi fan. Math T-shirt features humorous cow spots in the shape of the mathematical symbol pi.