We have a stuffed gator that the dogs love. We got it from Fosters and Smith and it is made with a nylon "belt" that makes it more resistant to tugging.

Some of their other favorites are their flying squirrel, bubble buddy (a "gun" that shoots bubbles flavored like Peanut butter, or bacon) and the hide-a-squirrel ( a stuff tree stump that come with 3-4 stuffed squirrels you hide inside)