MoMA Exclusive: A most unusual cuckoo clock, with dual purposes. The Nendo Bookend Cuckoo Clock is split into two components so that it can be used as bookends, co-existing harmoniously on your shelf. The cuckoo bird peeks out sideways from a small hole on the side of the clock every hour on the hour to emit a cuckoo sound that was custom-designed by Nendo, with two volume settings. The Nendo Bookend Cuckoo Clock has a light sensor so the bird is quiet when the room is dark. The clock is white with some exposed natural wood surfaces and stands close to 10” high. Requires two D batteries, included.