I made one of these steel wire loopy johnnies a couple of years ago, I bought a cycle lock based on a steel rope, and carefully dismantled it to leave the steel rope with small welded flanges on the ends. I made a 2 part wooden handle, assembled it so the welded flanges formed the base of the handle and wound it round and round with black duct tape to make the handle.
It was very heavy and left great marks and deep bruises. I gradually coached my girl at that time to taking 20 decent swats with it. Mind you, she loved a good bruise.
left waiting in reception naked and exposed, guest have been told not to touch yet but you dont know that, you can just hear voices and footsteps and as your cunt gets wetter and wetter your humiliation grows