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
Cocoa Krispies Italy, Greece, Sweden, Belgium, South Africa, Kenya, Uganda, Ukraine, Botswana, Hong Kong, Lebanon, Australia, Turkey and Republic of Korea and as Choco Pops in France. Later in the 1960s, the name was changed to Coco Krispies, but subsequently reverted to Coco Pops. The cereal was available in Canada for a time, but was discontinued at some point in the early 1990s. Instead, Kellogg's sells a variant called Rice Krispies Cocoa, which is simply Rice Krispies with a light chocolate flavor. Several spin off cereals using the "Coco Pops" name, such as Caramel Flavoured Coco Pops, Coco Pops Crunchers, Coco Chex,