Oldenburg, Lipstick (Ascending) On Caterpillar Tracks, 1969
- In 1969, the Vietnam War was going on; most of the protests took place at college campuses by college students
- Delivered this sculpture, unsolicited, to the office of the resident of Yale; act of guerrilla art; needless to say, this was taken away, but was rebuilt. In the second version, the lipstick was inflatable.
- Caterpillar tracks from a tank, and instead of a gun, there is a tube of lipstick; juxtaposition alludes to
- Lipstick is an item that is considered a very feminine object, but is put in a very phallic context on top of the tank; a humorous way to criticize the war