Works of art that use urinals/toilets

Works of art that use toilets or urinals :
 * Marcel Duchamp, Fountain (1917)
 * Franz West, Etude de couleur (1991, public urination June 1997 in Münster)
 * Sherrie Levine, Fountain (After Marcel Duchamp: A.P.) (1991)
 * Monica BoviniciBx_1.jpg