If you own a dog and are too lazy to take it out and get some exercise, first of all shame on you. Secondly, you might want to try this Autofetch Ball. The ball features a space inside for you to stick your dog’s favorite treats.
After that just let the internal gyro-drive do the work and spin around, keeping your pet entertained. Don’t expect your dog bring the toy back though. He has no incentive having already gotten his treats.