Is usually made by filling a shot glass with ice. Add a straw before filling with liquor.
Layer one: Chambord (raspberry liquor)
Layer two: Vodka
Layer three: Club soda
But at the bar that I work at, we also make zipperheads with the following layers:
Layer one: Raz-a-taz (raspberry Schnapps)
Layer two: Raspberry Stoli
Layer three: Sprite