Wikipedia
Wackel-Elvis (, "Wobbly Elvis") is a tall, hanging dashboard figure designed to resemble musician and actor Elvis Presley. A prototype of the figure was first introduced by the German automobile manufacturer Audi in a series of television commercials which were broadcast in several European countries. The commercials were produced by the advertising agency Saatchi & Saatchi in 2001 to promote Audi's new continuously variable " multitronic" transmission. Due to a high demand by Elvis fans after publication of the commercials, 15,000 Wackel-Elvis figures were produced and sold at the Audi factory outlet store.
Different from the design found in most conventional bobblehead dolls, not the head of the figure nods or wobbles on an otherwise static figure. Instead, the Wackel-Elvis figure is suspended from an elastic band connected to a suction cup attached to the windshield or rear window of a vehicle. The waist and left shoulder of the figure are equipped with flexible metal spring joints while its right foot stands on a pointed nail. This design prompts the figure to swing its hips, pivot around its vertical axis and shake its left arm up and down while the vehicle is in motion, creating an effect that resembles Elvis Presley performing on stage.