Thanks Maura! We have a Buster Cube and he loves it. That and his Kong! Anything I can put peanut butter in keeps the Prince of Mischief and Mayhem happy! He is shaping up to be a terrific dog, he's just a little more headstrong than we were prepared for. Luckily, I'm more stubborn! LOLThere is a great dog toy called the Buster Cube, that used to keep my Baron occupied. It is a big cube that you put kibble in. It can be adjusted from easy to difficult and is alot of fun. Also a marrow bone, sterilized-can be filled with spray cheese or peanut butter, that should keep him busy for a while.