Chalk produce, and thus widely used in the developing world, calcium-based chalk can be made where the crumbling particles are larger and thus produce less dust, and is marketed as "dustless chalk". Colored chalks, pastel chalks, and sidewalk chalk (shaped into larger sticks and often colored), used to draw on sidewalks, streets, and driveways, are primarily made of gypsum. Chalk is a source of quicklime by thermal decomposition, or slaked lime following quenching of quicklime with water. In southeast England, deneholes are a notable example of ancient chalk pits. Such bell pits may also mark the sites of ancient flint mines,
What Are Little Boys Made Of? appear in several popular songs, including "Nothing Can Change This Love" by Sam Cooke from 1962 and "Sugar and Spice" by The Searchers, from 1963. "Sugar and spice, and all things nice" is also a verse in the Stone Roses early single "Sally Cinnamon". Van Halen in 1991 released the song "Poundcake," which contains part of the lyrics in the beginning of the music video. Alternative rock band Garbage incorporate the words of the rhyme in their song, "What Girls Are Made of," on the Deluxe edition of their 2012 studio album "Not your Kind of People". In October, 1966,