For 10 points, name this Dadaist behind Fountain and the abstract Nude Descending a Staircase, No. 2.
The final issue of a magazine called The Blind Man was devoted to discussing a work by this artist. He hung a snow shovel from a wall to create his Prelude to a Broken Arm, and he assembled 152 marble cubes in a cage in an artwork whose title, Why Not Sneeze, (*) Rose Sélavy? references one of his pseudonyms. A mustachioed version of the Mona Lisa known as L.H.O.O.Q., as well as a work labeled "R. Mutt" are examples of this man's "readymades," which include a work that was just a urinal. For 10 points, name this Dadaist behind Fountain and the abstract Nude Descending a Staircase, No. 2.
The final issue of a magazine called The Blind Man was devoted to discussing a work by this artist.
(Henri-Robert-)Marcel Duchamp