Well, first of all, I broke down and got another Wubba even though just 2 days ago I said I wouldn't. I'll just have to monitor Coop a little better. Anyway, I picked up a toy called a beanie ball. Cooper is absolutely loving it! It's a kong-like toy and it comes with a treat that the dog can taste but just can't get to. We'll see how long the treat lasts, but he's been working on it for half an hour, and he's barely put a couple of scratches into the treat.