Pi Reversed Mirror Pie Tshirts Posted on 2013/02/07 by admin product tags: pie, 314, infinity, irrational, math, mathematics, cake, mirror, reverse, reversed, mirrored, godel, ratio, funny, hilarious, joke, yurt, humorous, ironic, witty, nerd, geek, comedy, ridiculous, cool, nerdy, geeky, subtle, parody,