I'm not sure WHY my labrador puppy isn't into the Kong- she loves to chew, she loves to eat, but she prefers my daughter's oh so expensive Melissa and Doug kitchen set equiptment to the Kong. We have three different Kongs- two puppy sizes and one medium adult Kong. She doesn't care much for any of them. She never chews them, she will only chase it down for a minute before losing interest. They seem like a great idea, and all the puppy owners I've talked to LOVE the Kong. My sister's puppy loved hers and has a great time trying to get the treat out. The bigger Kong has a squeaker in it, but still...review »