A you walk around most high school and college campuses, you're likely to come into contact with lots of words. But it won't be material from textbooks or term papers -- those are probably in backpacks or sitting unfinished at home. Instead, they're the simple phrases or logos -- most of which are ironic or amusing -- printed on the T-shirts on the backs of the students.
Usually, the more unique and offbeat the design is, the more desirable the T-shirt is. The growth of the Internet has made it possible for vendors to sell T-shirts all over the world. In fact, sites like CafePress.com and SpreadShirt.com allow you to set up your own store, create your own designs and sell them yourself. If you can create your own shirt design with a clever catchphrase or come up with your own unique statement and people like it, you can start making money.