I fell upon this website called I Love Boxie and it's such a cool idea! Basically they make a limited amount of tee shirts every 23 days. But not only that, the whole idea behind what's written on the tee shirts comes from anyone who lets them in on a story (which you can do easily on the website, i have).
It's such a good idea, i love reading them and some of the stories too. It's a must to check out!