Snap, Crackle and Pop the early 1990s, but later returned to their original elf-like form. Likewise, there was briefly a fourth gnome in the 1950s named Pow who represented the claimed explosive nutritional value of Rice Krispies. Leo Burnett Worldwide assigned Chicago-based cartoonist Don Margolis to do Snap, Crackle and Pop for the Rice Krispies boxes as well as other applications. Davidson Marketing also used him for their Rice Krispies assignments. Don did the three gnomes until the end of 1998. "Snap", "crackle" and "pop" are terms, based on the Rice Krispies mascots, used for the fourth, fifth and sixth time derivatives of position.
Rice Krispies created by illustrator Vernon Grant in the 1930s. The original gnome-like Snap! first appeared in 1933 on a package of Kellogg's Rice Krispies. Crackle! and Pop! came later, and since 1939, the three have been together in many forms of advertising, including radio, movie shorts, and comic strips. An updated version of the elf-like Snap! Crackle! and Pop! appeared for the first time on television in 1960; before that it was advertised by Woody Woodpecker. They are the first and longest-running cartoon characters to represent a Kellogg's product. The cereal is marketed on the basis of the noises it produces