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 2006, the name was changed back to Cocoa Krispies. Kellogg's has released variations of Cocoa Krispies such as Cocoa Krispies Cereal Straws, Cocoa Krispies Choconilla, and Chocos. The cereal is known as Choco Krispis in Mexico, the Dominican Republic, El Salvador, Costa Rica, Honduras, Colombia, Guatemala, Panama, Venezuela, Ecuador, Peru, Bolivia, Brazil, Chile, Paraguay, Uruguay, and Argentina, and Choco Krispies in Portugal, Spain, Germany, Austria, and Switzerland. It was introduced in the United Kingdom as Coco Pops in 1961, and is also known by that name in the Netherlands, Denmark, Nigeria, Bulgaria, Ghana, Malta, New Zealand, Republic of Ireland, Finland,