Foo, I MADE shirts already! LOL. Go check out DriftFactory's shirts. The black and white ones with the car and the chassis number on them. I designed them. They charged a lot, and you know what? People still bought them.
Here's the link.
http://www.driftfactory.com/index.php?cPath=39_42
That's my work, and it sells. Don't believe me? Ask them. I did the designs for the S13, S14, FC, FD. I taught Jason how to do the graphics and he went on from there. I think he did the AE86 and MAYBE one more... I haven't talked to them about it lately.