Readymades of Marcel Duchamp not the true "Mona Lisa", but Duchamp's own slightly-different version that he modelled partly after himself. The inference of Shearer's viewpoint is that Duchamp was creating an even larger joke than he admitted. Readymades of Marcel Duchamp The readymades of Marcel Duchamp are ordinary manufactured objects that the artist selected and modified, as an antidote to what he called "retinal art". By simply choosing the object (or objects) and repositioning or joining, titling and signing it, the Found object became art. Duchamp was not interested in what he called "retinal art" — art that was only visual — and sought
Marcel Duchamp forays of witticism and clownery ... the disintegration of the concept of art". Duchamp's notes from the trip avoid logic and sense, and have a surrealistic, mythical connotation. Duchamp painted few canvases after 1912, and in those he did, he attempted to remove "painterly" effects, and to use a technical drawing approach instead. His broad interests led him to an exhibition of aviation technology during this period, after which Duchamp said to his friend Constantin Brâncuși, "Painting is washed up. Who will ever do anything better than that propeller? Tell me, can you do that?". Brâncuși later sculpted bird forms.