I have two small unbound quilts - about doll size, that I had put in our storage area and somehow they ended up on the floor where mice have trampled on them. I know because of the droppings that were on them. I shook all that off and they look fine otherwise, but they should be cleaned before I bind them.
Also, they've bitten into some bags of batting. Tiny spots that are dirty. I guess I'll just have to wash them. I do like them shrinking after quilting, but there you are.