So, you didn't do it yourself. But these people did, which means the t-shirts are useful inspiration and unique, if you just like them. You can also submit your own designs.

fantastic, properly fitting t-shirts at reasonable prices. the graphics are unique, without being corny or weighed-down with too much copy.

They have some of the coolest designs. All designs are done by different individuals and there are new tees every week. =)

http://threadless.com/?from=itomi

I love to shop there.. For cool t-shirts and it's inexpensive.
I have couple of shirts from them!

Awesome website with really cute unique tees

There are some sick shirts, and some not so sick shirts, but the sick shirts win. So check them out. (if you havent already, that is)

This site is awesome. The shirt designs are quirky and weird and I always get compliments on mine, plus they are great conversation starters. If you are good with designing then you can submit one of yours and get paid! (via Addhemar Sierralta)