Have you done and research into 3D printers? Not cheap, but very versatile. You don’t have to buy one, there are companies that will do the printIng for you. Even if you can only afford one arm, you could use it to make an epoxy mold, and cast the rest yourself.
BUMP. Okay so I emailed a few people about this, and got only a single response asking for a quantity for a quote, and have heard exactly nothing since. I know Dutch is still working out the kinks in his printer, but would anyone else have any recommendations for custom toys? Will reward fruitful responses with a single pancake.