Here is an interactive dog toy that dispenses treats as your dog plays with it. The Smart Doggie Interactive Treat Ball is made of pet safe materials and gives your pet treats throughout the day. It also helps promote good chewing habits.
The ball makes a squeak as it is rolled. It works for dogs of all sizes. You can get it in 2.9 or 3.7-inch versions. Costs as low as $5.99 at this time.