L.H.O.O.Q. and wrote "Moustache par Picabia / barbiche par Marcel Duchamp / avril 1942". As was the case with a number of his readymades, Duchamp made multiple versions of "L.H.O.O.Q." of differing sizes and in different media throughout his career, one of which, an unmodified black and white reproduction of the "Mona Lisa" mounted on card, is called "L.H.O.O.Q. Shaved". The masculinized female introduces the theme of gender reversal, which was popular with Duchamp, who adopted his own female pseudonym, Rrose Sélavy, pronounced "Eros, c'est la vie" ("Eros, that's life"). Primary responses to "L.H.O.O.Q." interpreted its meaning as being an attack
Marcel Duchamp Dalí's "Rainy Taxi", a work consisting of a taxicab rigged to produce a drizzle of water down the inside of its windows, with a shark-headed creature in the driver's seat, and a blond mannequin covered with live snails in the back. In this way Duchamp confronted guests entering the exhibition, who were in full evening dress. "Surrealist Street" filled one side of the lobby with mannequins dressed by various surrealists. The main hall was a simulation of a dark subterranean cave with 1,200 empty coal bags suspended from the ceiling. The floor was covered by Paalen with dead leaves and