Novmichi Tosa, the man who runs the kooky briliant art unit Maywa Denki, has invented a new musical instrument called the Otamatone, which is shaped like a musical note (or a tadpole) and sounds kind of like a theremin. It has cute little mouth and a long tail that functions as a keyboard. This video is in Japanese, but you can get a feel for how the instrument works and what a lovely man Mr. Tosa is. Watch him play a Japanese children's tune about singing frogs two minutes into the clip.
The Otamatone is currently in production and is slated to sell in Japan starting at the end of this month.