Spoonflower prints quality custom fabrics (as well as wallpaper, wall decals, and gift wrap) to order, and I offer several designs through them. I keep it pretty dorky, with my most popular fabrics being Star Trek inspired designs. If you have a specific need, request, or want me to tweak an existing design for a project, definitely let me know!
For information on commissioning artwork, I have a basic post about that over at my deviantArt site. I’m open for design projects of varying sizes and types, so if this framework doesn’t quite fit your needs (and even if it does!), get in touch and we’ll figure out the details.