My Mom used to have an embroidery machine that could sew any jpg image onto clothes /hat or a patch. I think she got rid of it a while back. But lots of old ladies have them to put crap on baby clothes... you might want to try hanging out at a store like jo-anns or micheals, you'd probably find a contact who'd be able to do the patches pretty cheap (you might have to entertain some cougars). I think those embroidery machines are pretty expensive like in the 500 dollar range... I'd lobby your mom, grandma or wife to get one. A lot of people make a lot of money selling baby clothes that they embroider with flowers, characters and other baby stuff (thats what my mom was doing for a while).
I don't know who does the RU artwork, but I love the shirt I got at harvester.. unless you already have a patch idea they might be able to provide some artistic input.