The pink cartoon alien mascot of Quisp, a sugar-sweetened breakfast cereal from the Quaker Oats Company. It was introduced in 1965 and continued as a mass-market grocery item until the late 1970s. It is now primarily sold online. Like Cap’n Crunch, Quisp was created by Jay Ward Productions as a trademark character on which to build a cereal brand.
Note: Quisp clearly looks based on the Moon Men (Gidney and Cloyd) from the 1959-1960 “Jet Fuel Formula” story arc of The Rocky and Bullwinkle Show.