Snap, Crackle and Pop The first derivative of position with respect to time is velocity, the second is acceleration, and the third is jerk. The fourth is snap, or jounce, while the fifth and sixth are sometimes called crackle and pop. Snap, Crackle and Pop Snap, Crackle and Pop are the cartoon mascots of Kellogg's crisped-rice breakfast cereal Rice Krispies. The gnomic elves characters were originally designed by illustrator Vernon Grant in the early 1930s. The names are an onomatopoeia and were derived from a Rice Krispies radio ad: The first character appeared on the product's packaging in 1933, Grant added two more and
Rice Krispies sold in the past. An extremely sweet, artificially-colored cereal, Razzle Dazzle Rice Krispies, was sold from late 1997 to 1999. Apple Cinnamon Rice Krispies, a cereal flavored with apple and cinnamon, was sold in the early 1990s. Also discontinued are Rice Krispies with berry flavors, including Berry Krispies and Berry Rice Krispies. In the late 1990s, Rice Krispies with honey, Honey Rice Krispies, was sold in the U.K. and Canada for a short period of time. In the late 1990s, Kellogg's sold Halloween versions of their regular cereal. This included Halloween Rice Krispies which featured a variety of orange krispies.