We have a new favorite toy around here - the Holl-ee Rollers. All the kids love them. I have four now - one for each dog! LOL Vinnie loves to play tug with them or retrieve them. I fill one with treats, a banana, etc... when he goes in his crate and he works on getting the goodies out. Kind of like a kong - only easier. My guys have never been good about getting everything out of a kong, so these are great!!