Which of these is not a cookie eating monster designed by Jim Henson for the General Foods commercial?

Cookie Monster is a blue Muppet character on the long-running children's television show "Sesame Street" created by Jim Henson. The book "Jim Henson's Designs and Doodles" explains Cookie Monster's origin as follows: "In 1966, Henson drew three monsters that ate cookies and appeared in a General Foods commercial that featured three crunchy snack foods: Wheels, Crowns and Flutes.

Each snack was represented by a different monster. The Wheel-Stealer was a short, fuzzy monster with wonky eyes and sharply pointed teeth. The Flute-Snatcher was a speed demon with a long, sharp nose and windblown hair. The Crown-Grabber was a hulk of a monster with a Boris Karloff accent and teeth that resembled giant knitting needles."

As it turns out, the commercial was never aired, but all three monsters had a future in the Muppet cast.

The Crown-Grabber was used in a sketch on "The Ed Sullivan Show", in which he ruins a girl's beautiful day. He made a number of appearances on "Sesame Street" and "The Muppet Show". The Flute-Snatcher turned into Snake Frackle, a background monster from "The Great Santa Claus Switch" and "The Muppet Show". The Wheel-Stealer appeared in an IBM training film called "Coffee Break Machine". The monster (with frightening eyes and fangs) devours a complex coffee making machine as it describes its different parts.