Core77

This excellently obscure piece, "Fin d'Histoire", by Guillaume Paris has been around since 1988, but if you haven't managed to catch it over the past 19 years, well, here you have it.

A milk carton and coffee pot stand opposite one another, on either side of a chess board. The spouts are arranged to face each other. In the cubes of the chessboard, the variable levels of milk and coffee indicate an unfinished process. The amount of liquid remaining in the lateral recipients suggests that overspill is the only possible outcome of htis process. In this arrangement, the game becomes confused with the rules.

via vvork