Hey! This gives me some great ideas new ideas for the knong. I love the kongs (and my dogs do too) because I feel like they are actually one of the safer toys I can give my dogs while I am gone. I refuse to leave them with any type of bully stick or chew unsupervised. Mine seem to love the kongs and it is so funny to see them work to get their food/treats out. Moka las learned to bounce hers off the floor to break up what is inside.
