I’d better clear this up quickly. This is a list of pi t-shirts for fans of math. It’s not a list of pie t-shirts for fans of err, pie. And, as tempting as it is, I’m not going to post pi to a huge number of decimal places. You can see how it goes in the image above. Basically, it started with a 3 and then there is a decimal point. After that, there is a 1, a 4, a 1, a 5, a 9, a 2… OK, that was only to six decimal points and I think I may have fallen asleep a little while I was typing. Anyway, check out the pi t-shirts below. If you are a total nerd, you might want to check out the list of math t-shirts and the science t-shirts.