Coin de chastete by Marcel Duchamp, 1954. Bronze and dental plastic.
Duchamp gave the original version of this sculpture to his wife on their wedding day, as a form of wedding ring. The bronze wedge has the appearance of being cast from a woman’s genitals. The satisfyingly snug fit of the two halves, and the pink, fleshy tone of the casing, give it an enigmatic, erotic charge.