Rice Krispies when milk is added to the bowl. The onomatopoeic noises differ by country and language: In 1938 and 1939, Vernon Grant, the illustrator who created Snap, Crackle and Pop!, produced a set of six illustrations of Mother Goose themes including Humpty Dumpty, Jack and Jill, Jack Be Nimble, Little Jack Horner, Peter Peter Pumpkin Eater, and Twinkle Twinkle Little Star that were offered as premiums in exchange for two Rice Krispies boxtops and a three-cent stamp. In 2004 packets of Pop Rocks were packed inside specially marked boxes of Rice Krispies. Television commercials showed the candy exciting Pop!, who shouts
Rice Krispies Rice Bubbles, copha and cocoa, amongst other things. In the UK, a similar treat is made of Rice Krispies and melted chocolate. White Christmas is another Australian sweet made with Rice Bubbles, milk powder, copha and dried fruit. Kellogg's also produces commercial versions of Rice Krispie treats known as Rice Krispies Squares, cereal bars, and a multi-grain cereal known as Rice Krispies Multi-Grain (formerly Muddles) sold on the UK market. Primarily aimed at children, Multi-Grain contains a prebiotic and is claimed by Kellogg's to promote good digestive health. Snap! Crackle! and Pop!, the animated cartoon mascots for Rice Krispies, were