For 10 points, identify this artist who took a series of pictures of Rrose Selavy, the female altar-ego of fellow Dada artist Marcel Duchamp.
This man put his handprint on a white pentagon in a work titled Autoportrait, and showed a group of primary-colored stick figures riding horses and holding yellow tools in his AD 1914. He showed a flower with several yellow and one long spiky green leaf with an eye in front of a petal in his Misunderstood. He wrapped a sewing machine in wool and string in one work. Meret Oppenheim posed nude for him in a few photographs, and he invented the solarization technique.  One work by this artist of The Enigma of Isidore Ducasse shows the back of a nude woman with two f-holes cut into her skin, entitled The Violin of Ingres. For 10 points, identify this artist who took a series of pictures of Rrose Selavy, the female altar-ego of fellow Dada artist Marcel Duchamp.
This man put his handprint on a white pentagon in a work titled Autoportrait, and showed a group of primary-colored stick figures riding horses and holding yellow tools in his AD 1914.
Man Ray [or Emmanuel Radetzsky]