Seeing the picture of the yorkie chewing on a rubber thong made me chuckle and brought back some long ago memories. I remember when I was little that ours would latch onto the back of my thongs as I was walking and would hang on and wouldn't let go. Hence, my thongs always had tooth marks in the backs of them
Muffin always liked those hollow vinyl balls that squeak. She could hold onto them with her little mouth. She'd get ahold of one and look up at us and all you could see was two eyes and a big red ball
She did learn to catch them if you tossed them in the air. One time she got into trouble with one, though, because she always liked to tear them up at the opening (where they squeak) and somehow she got the tiny rubber ring caught on one of her back teeth. That caused a panic for her and for us. She was scratching at her mouth and I didn't know what was wrong. Thought she was choking at first. Rushed to the vet. They anesthetized her and found the ring around one of her back teeth!!!
Her favorite lifetime toy, though, was a stuffed doggy that got washed many times over 14 years and was well-chewed.