How to make easy stuffed Kongs to start out puppies and inexperienced dogs with food toys.
Note: an astute viewer pointed out that at 2:22, the dog being filmed appears anxious. I agree. Her tail is pressed down and curled under her body. This was probably because of the filming situation–she has a very happy response to Kongs in real life. But those few seconds are not a good example of a dog enjoying a Kong. If your dog consistently acts like that, Kongs may not be a very good enrichment toy, or you may have progressed too fast in difficulty.
Puppies and Babies Playing Together Compilation.