The things that get a lot of mileage here are the Cuz, a puppy tire and the kong...Bear also loves fresh bones but we usually throw them out after a day or two.
Every once in a while I'll buy stuffed animals from the second hand store for Rear to de-stuff...he has a great time...but he doesn't like to clean up...
Edited to add: Bear also thinks the kiddie pool is a giant water dish!