Heinz ketchup poster - in this poster, designer put the stalk of tomato on top of the ketchup bottle to represent tomato. Designer used just two elements(ketchup bottle and tomato top) but now it show new aspect from that. It's simple but smart.
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.