Check out this site and the picture "An Array of Scottish Tawses"
www.corpun.com/scotland and see what the teachers used to keep order when I was at school.
Some of them were so sadistic with it,after six slaps with one of these,your hands were numb for hours.
One old art teacher had a trick he would show all the new kids he would hit a coin on his desk with one of these babies and the coin would be flush in the wood of the desk.Left an impression in more than the desk, break out in a sweat remembering it.