I've put everything I can think of in his kong, even his absolute favorites, and they are still in the kong when I get home. I'll put a milkbone or something in it with one end sticking out and he'll bite off whatever is sticking out and leave the rest Roscoe likes stuffed toys, but he destroys them. Especially if they have a squeaker, because he wants to get the squeaker out His other toys that he loves he doesn't play with unless one of us is home.