Pumpkin Pi - Women's T-ShirtCarving a math symbol into a pumpkin is the most efficient way to clear a Thanksgiving table since announcing your political opinions. At least 3. 14159 people will laugh, and every single one of them teaches high school. The Details: Orange pumpkin illustration with a green stem displays a black Greek letter "" carved into its front, rendered in a distressed vintage screen print style. Fit & Fabric: Deluxe (Solid Colors): 100% Ring Spun Cotton.