Today only you can get this Pi-Rates T-Shirt for only $6.99 from LOL Shirts (an offshoot of Tanga)! This shirt cracks me up and I’m totally getting one for my sister-in-law who is a math teacher. Shipping will cost $1.99, so you’re looking at $8.98 shipped. A good price for a cute shirt! Arrrrgh Matey!