Answer
L.H.O.O.Q., a witty artwork by Marcel Duchamp, playfully parodies Leonardo da Vinci's enigmatic masterpiece, the Mona Lisa. Duchamp mischievously adorned a cheap postcard reproduction of the Mona Lisa with a mustache and beard, playfully mocking the iconic and highly revered painting, challenging conventional artistic norms and provoking discussions about originality and the significance of context in art.