@Aslanmane Do it!! redbubble is so much fun :D
Be mindful of where you place your artwork (look at the previews for different items - lots of people don't!) and on which products. Some of their screen-print tees we've gotten have been good (like my hubby's "nailed it" martin luther one) ... but i got a stretchy women's tee, and the print started rubbing off inside a week.