To celebrate Pi day (March the 14, or 3-14), some ‘net denizens have gotten to celebrating with a cake. A pi cake. A cake shaped like pi. A pi made of cake.
Others took the more normative route and created a Pi this year made of actual pie. So boring!
While we are on the topic, I know of no one who celebrates the other “Pi” day, the one on the 22nd of July, or 22/7.