Here's a crazy one for ya'!
Bat Bombs!
https://en.wikipedia.org/wiki/Bat_bomb (https://en.wikipedia.org/wiki/Bat_bomb)
https://www.theatlantic.com/technology/archive/2011/04/old-weird-tech-the-bat-bombs-of-world-war-ii/237267/ (https://www.theatlantic.com/technology/archive/2011/04/old-weird-tech-the-bat-bombs-of-world-war-ii/237267/)