Kermit's Swamp Years Easter Egg - Animal Makes an Appearance

There are several obvious references to Jim Henson (the Muppets creator) & the original Muppet Movie, but none would really warrant being called an "egg". However, when I saw this one, I actually stopped the movie & had to rewind. Right after Blotch is chasing Kermit, Goggles & Croaker to the edge of the swamp, Blotch is beating up Goggles in the middle of the street. Mr. Wilson's "Shiny Red Beast" stops in front of them (at counter 19:04) and you see a close-up of his keychain dangling from the truck's ignition. The keychain is Animal, the drummer from the Electric Mayhem. You will see another, better close-up at 21:03.