A sharp-toothed prototype of the Cookie Monster makes his first appearance as the Wheel Stealer in a 1966 unaired pilot ad for General Foods Canada’s Wheels, Crowns and Flutes snacks. According to Muppet Wiki, the “Wheel-Stealer” puppet then went on to star in an IBM training film titled “The Coffee Break Machine”. Later, he appeared … Continue reading The Earliest Appearances of Cookie Monster