Our 2 male cats are very destructive with their toys. Most toys I buy them only last a day or two. When we lived at our old place we used to buy them lots of those little mice and they just loved them but they always disappeared. It was a very small apartment and we used to wonder where they went but we kept buying them. Then when we moved my husband and I still never found any of them and we wonder if they ate them?? Needless to say we don't buy any toys like that anymore! The tin foil balls have disappeared now too but I made them very hard so I don't think they will be able to eat those. I hope not anyway!! LOL