In looking through my catalogs, Rockler seems to have the most potential. They have some oak moldings that would work and another idea is to take their Children's Inlay Banding and run that in a groove routed in oak. The fish or sailboat designs would be really cool, if that fits your decor. They are at www.rockler.com. For me anyway, a catalog is easier for imagineering.
Also call Woodworker's Supply at 800-645-9292 and ask for a catalog. They have a lot of potentials, also.
Don't forget that it will be very difficult to wrap a thick piece of wood around a tight radius corner. No matter what, you will need a LOT of clamps.