The Dog Tornado, for example, has four layers of bone-shaped trays that can be stocked with treats. To release it, the dog must rotate each layer. Nina Ottosson Interactive Dog Toys are made of ...

allowing this puzzle toy to wobble erratically—which motivates your dog to play. Your little force of nature will have to work for his snacks if you buy Outward Hound's Dog Tornado. The three ...