FTP, name this Swedish pop sculptor of Lipstick (Ascending) on Caterpillar Tracks and Clothespin, noted for giant sculptures of food and classifying his sculptures as "hard" and "soft".
His "Ray Gun Theatre" artwork was inspired by his meeting with Allan Kaprow in New York City in 1956 where he learned of "happenings", or performative pieces of art.  Other works of his include the Crusoe Umbrella in Iowa and Typewriter Eraser at the National Gallery of Art, created after his marriage to Dutch pop artist Coosje van Bruggen, but he is more famous for erecting a sculpture of lipstick resting on a black tank-like base at Yale. FTP, name this Swedish pop sculptor of Lipstick (Ascending) on Caterpillar Tracks and Clothespin, noted for giant sculptures of food and classifying his sculptures as "hard" and "soft".
His "Ray Gun Theatre" artwork was inspired by his meeting with Allan Kaprow in New York City in 1956 where he learned of "happenings", or performative pieces of art.  
Claes Thure {Oldenburg}