Aside from the tennis ball and chew bone, the Kong might just be the next most iconic dog toy. It’s also a fantastic enrichment toy. It’s a deceptively simple, durable rubber toy that can be stuffed with peanut butter, canned pumpkin, kibble soaked in chicken broth, and loads more. A frozen stuffed Kong can keep your pup quietly licking and chewing away for half an hour, and get them ready for a nap after. They come in sizes from XS to XXL. You might want a small stock of these ready in the freezer to always keep your pup occupied.