I don’t know if you were joking when you said you made them all up but the first two are actual thing: the Kusarigama (https://en.m.wikipedia.org/wiki/Kusarigam

I don’t know if you were joking when you said you made them all up but the first two are actual thing: the Kusarigama (https://en.m.wikipedia.org/wiki/Kusarigama https://en.m.wikipedia.org/wiki/Kusarigama) and pump used for Greek Fire (e.g. see the illustration here https://en.m.wikipedia.org/wiki/Greek_fire https://en.m.wikipedia.org/wiki/Greek_fire)