For Hummer we have a term and definition in Pyrotechnics.

Hummer (Pyrotechnics)

A small tube filled with pyrotechnic composition and plugged at both ends, with an angles hole in the side. Upon ignition, the device spins around very rapidly. At one point during each revolution, the hole (which is producing the sound) is pointed towards the observer, who perceives it as a "humming" sound.

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