If you do an ebay search on 1/6 guitar girl resin, you will find a figure with a rickenbacher bass. I asked them just to cast the guitar for me. When I recieved it, I had to modify (and move) the top cutaway to the other side to make it left handed. Then, I had to paint it (which was actually fun to do, because Mccartney's bass during the Sgt. Pepper days was really unique). Thanks for asking!
Unfortunately, the "sets" I have seen are not 1/6 scale. They are larger. The guitars need to be 6 to 7 inches in length. If you have a link, please post..