Weapon design is often meant to inspire fear, but occasionally it's just so goofy or strange that you wind up laughing. Such is the case with the weapons in this gallery, which include a scooter rifle, acoustic kitties, and harmonica guns.
Harmonica guns, multi-shot weapons with a horizontal magazine, invented by J. Jarre between 1859 and 1862
(via Historical Firearms)
Operation Acoustic Kitty, a $20 million CIA project from the 1960s, cancelled in 1967
"In an hour-long procedure, a veterinary surgeon transformed the furry feline into an elite spy, implanting a microphone in her ear canal and a small radio transmitter at the base of her skull, and weaving a thin wire antenna into her long gray-and-white fur. The goal was to transform the female feline into a living, walking surveillance machine. For its first official test, CIA staffers drove Acoustic Kitty to the park and tasked it with capturing the conversation of two men sitting on a bench. Instead, the cat wandered into the street, where it was promptly squashed by a taxi." – according to Emily Anthes.
(via Today I Found Out)
Schwerer Gustav and Dora, the largest-calibre (800 mm) rifled weapons with the heaviest shells (7 tons) ever used, designed and built by Krupp in the late 1930s to destroy the main forts of the Maginot Line
The flashlight gun of North Korean secret agents
Each hole is actually a gun barrel, which gets activated with the push of a button.