Actually the bonus with t-shirts is that it doesn't cost a ton of money. I used to work with a company that made most of its money off of t-shirts.
Getting 144 t-shirts printed with one color costs about 500 dollars, including the shirts. You can sell these for $20, which means you make about $2300. You don't really need to make more than 144 (unless you are at the level of CollegeHumor) because there are so many just-in-time style print shops. If you sell out, you can have another run made in less than a week.
Getting 144 t-shirts printed with one color costs about 500 dollars, including the shirts. You can sell these for $20, which means you make about $2300. You don't really need to make more than 144 (unless you are at the level of CollegeHumor) because there are so many just-in-time style print shops. If you sell out, you can have another run made in less than a week.