Insanely Great Tees have introduced two new shirts for Mac fans. Drawing inspiration from the history of Apple, they have introduced Apple Timeline, a shirt which shows the evolution of the computer company. It’s a trip down memory lane in shirt form. Additionally, they have come up with The Formula Tee, proving that great ideas don’t come out of thin air; they require late nights and a lot of coffee. Both shirts are shipping now for US$17. All designs are printed on 100% cotton American Apparel shirts.