Guerrilla marketing to make people stop smoking. This harsh realization of using a fake pair of lungs as an ash tray shows the build up of cigarettes and shows how maybe even smoking a day can collect up and make a lasting damage on your lungs.
A few years back, New York ad agency JWT came up with this brilliantly creative campaign for razor company Schick. To illustrate "the power of four," they created a razor so sharp, it even shaves the hair off tattoos! Clever and creative.