It's a design I made for my cafepress tshirts.
Check out my cafepress store if you get the chance at : [link]
Its still under construction, so it looks rather incomplete. But twill eventually look a bit more slick.
Cafepress is quite a fun place. Go sign up to sell your own designs on clothes and junk. If you do, tell me about your store, and I'll add you to my affiliates (and you can add me too).
PS. If you know of any better sites for this kind of thing DO NOT TELL ME. I already spent 80 buckos to upgrade my shop to a Premium store, and it would kill me to find out about a better site.