I found a great dog treat at Trader Joe’s. I hope they don’t end up discontinuing it. They are Trader Joe’s Organic Chicken and Brown Rice Recipe Sticks. A long name for these semi-soft treats. I use them to stuff the Kong Bone and I also break them into small bits for training. They break easily and don’t crumble. For the Kong Bone, I take two sticks, break each stick in half, then I put two halves together and stuff the ends.