I looked up Ging gang goolie today because I just heard it sung on a Coronation Street eposide. on a charabang (coach). I used to sing it in the 1950's when I was a Brownie. My older sister was Brown Owl then took some sort of test and was promoted to Tawny Owl, We sat around a Paper Mache toadstool to sing our songs.
A mangle is what we used to wring the water out of laundry before hanging it on the washing line to dry. 2 rubber rollers pressed together by gears when you turned a handle to the side.