I noticed last time I was at MGM that a lot of people had bought Kermit backpacks. The stomachs were the storage part, and then it had a head on the top with arms and legs dangling off. It's a cute idea, but for some reason they did it to where Kermit's back is up against your back. Instead of him hugging you, he hangs limply and looks really sad.
There are other Muppet things available, though. I don't remember the specific stores, but you can always ask a CM if you're afraid you may have missed some stores.