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Instrument design is going down the toilet. Cementimental s Optical Theremin Loo fits a photosensitive noisemaker into a tiny plastic rendition of the Porcelain God; adjust the sound by moving the lid up and down. (Insert sexist joke about leaving the toilet seat up here.) Not feeling it? This circuit bender can give you whatever you want, from Ghostbusters toys to the worst possible gadget to take with you on your next mass transit ride—a fake Parcel Bomb. Other benders have taken on Billy Bass and dancing daisy toys, among others. -PK

Optical Theremin Toilet, Operatic Daisies, and More of the Weirdest Instruments Ever [ create digital music ]