I would like to find a good part time job that involves art.

I'm in high school right now and I'm involved with a lot of sports that take up so much of my time and life that I haven't really gotten around to finding a job yet. And even though I do have some open time I don't really want to work out for many hours until I'm exhausted and then go stand behind a cash register for more hours. I could work in a gas station or a movie theater but I'm not really sure if I would want to do that. I would much rather do something that would involve drawing or painting, seeing as how I'm pretty decent at drawing and I've already won a few competitions for my art, I think it would be much more enjoyable to have a job where I could use my artistic skills. Last year I designed all the shirts for the athletic programs at my school by sketching them out on paper, and then they were sent in to some company and the designs were transferred onto the clothing. I was wondering if there was any job where I could just do stuff like that, or even maybe if I didn't have to work somewhere and I could just draw stuff out in my rest time at home.