Your pervasive merchandising drives me crazy, and deep down, I really suspect one of your meta-missions is to help kids develop the skills required to have a deep, personal, lifelong relationship with television itself.
But when Oscar makes totally offhand comments on how scary and/or baffling Slimey's Unnamed Purple Dinosaur costume is, all is forgiven. Take my money and brainwash my child, Children's Television Workshop, I can't stay mad at you.
[note: I know, it's old, but I didn't have a sweet, new flatscreen to take a picture of until now.]
Uh, and I didn't realize there were annotated screencaps for every episode on Muppet Wiki until now, either: Episode 3856: Wormy Gras [wikia.com]