Well, I don't know if this is really what you are looking for. But, Mylee got this ball, or something very similar, in her last GE exchage box, and she loves it! I was surprised, because it is a little heavy. But it is designed for chewers, and you can hide treats in the crevices. She loves to play fetch with it, and I occasionally see her chewing on it, but it's very strong and I have not seen any pieces chewed off. It does not squeek.
http://www.jbpet.com/RS/SR/Product/6190112_L.jpg