What random object

What random object does your pet like playing with far more than actual toys?

We don't have any pets.

I currently don't have any pets. But my cat would always find something to play with, but it was different all the time. I never noticed a favorite object. My dogs never seem to play with anything. The Papillion always wanted to be in my lap or next to me being petted. It would run around with and play with the cat. My Australian Shepherd never showed interest in playing with anything. It would just walk around discovering new things but mostly would just hang around me. That was my best dog ever! 

He likes to eat my shoes. Ate a hole in it. And he loves the old stuffed animals from the kids. He'll lick them.