Buyers should beware of shoddy "knock-offs" from disreputable online vendors! Jonathan Gabriel, renowned Internetologist, has allowed us to use his famous theorem under exclusive license.  Newly redesigned to more accurately capture the truth. 100% cotton heavyweight t-shirt in dark green. Printed on the front in white with the Penny Arcade logo on the back.  

Buyers should beware of shoddy "knock-offs" from disreputable online vendors! Jonathan Gabriel, renowned Internetologist, has allowed us to use his famous theorem under exclusive license. 100% cotton heavyweight t-shirt in black. Printed on the front in green and white and the Penny Arcade logo on the back.  

This ancient design, brimming with timeless wisdom, returns!  Indeed, this is it right here.

This Big Bang Theory red t-shirt features Sheldon's catch phrase Bazinga! He uses this when he feels he has just burned someone.Available in Small, Medium, Large, XL, 2XLOfficially Licensed

This Big Bang Theory Cast t-shirt features Sheldon's catch phrase Bazinga printed above the Big Bang Theory crew. Available in Small, Medium, Large, XL, 2XL & 3XL!Officially Licensed!