Working in a rescue I see alot of dogs come in for the simple reason that they get no mental stimulation, and well, they go nuts. While these dog toys from Zoo Active Products, out of Sweden won't solve all your problems, they can help! There are 10 interactive puzzles for your dog in the series but I just love this Dogfighter model because it reminds me of a toy I had when I was little. If the dog can figure it out when I couldn't I'm going to be very embarrassed. Priced from $40-50 at Scot Petshop.