My brother [the sculptor artist Raymond Duchamp-Villon had a kitchen in his little house in Puteaux, and he had the idea of decorating it with pictures by his buddies. He asked Gleizes, Metzinger, La Fresnaye, and I think Leger [all Cubist painters, then] to do some little paintings of the same size, like a sort of frieze. He asked me too, and I painted a coffee grinder which I made to explode.

in: Entretiens avec Marcel Duchamp, 1965; as quoted in Futurism, ed. By Didier Ottinger; Centre Pompidou / 5 Continents Editions, Milan, 2008, p. 198