Nerd Labs

It works like it says :)

Exactly what I was looking for! I had trouble getting the code snippet to work, but their team was able to insert the code for me into the theme.

I absolutely LOVE SPOD! They print the shirt or mug or whatever you need in a couple days and it ships out in a couple more days. You can design away to your heart's content and they add more printable products every so often.