Pizza Party Treat PuzzleSlide, twist, and snack! The Dog Pizza Party Treat Puzzles 12 shapes give dogs mental stimulation by challenging your dog to slide, spin, and twist to get at the tasty dog treats hiding underneath each pizza topping. Place kibble or treats under each topping piece and watch your dog use their paws and nose to get to the treats hidden inside this interactive dog toy. As they do nose work, they get mental stimulation which keeps dogs bright and happy.