Stick Bombs

I can’t help but feel that my education has failed me since this is the first time I’ve heard of this:

A stick bomb is a mechanical spring-loaded device constructed out of flat sticks woven together under tension. Other names for stick bombs include Chinese stick puzzles, and frame bombs.

Simple stick bombs made out of four, five, or six sticks have been known to schoolchildren for ages. They were often known as ‘Chinese stick puzzles’ which indicates a possible origin for the devices. In the early 2000s, new methods for creating stick bombs of limitless size were developed.