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.
Puffed rice be conditioned with steam. Puffed rice can be created by heating the steam-conditioned kernels either with oil or in an oven. Rice puffed in this way is crisp, and known as "crisped rice". Oven-crisped rice is used to produce the Rice Krispies breakfast cereal as well as the crisped rice used in Lion Bars, Nestlé Crunch, Krackel, and similar chocolate bars. Though not as dramatic a change when compared to popcorn, the process and end result are the same. Another method of puffing rice is "gun puffing", where the grain is conditioned to the correct level of moisture and pressurised