This isn't a medium I am used to, but I do know a few folk who are hard core into this... I mean making money online and junk... it might be a fun side project when I clear a week or so off the schedule.
If you’re interested in designing your own custom t-shirts, there are a number of helpful tutorials that explain and demonstrate the process. Many web and graphic designers like to branch out to t-shirt design, even if it is only for fun and experimentation. In this post we’ll link to the best tutorials available for teaching how to design your own t-shirts.