Hey Terry - well welcome to the forum my friend. So glad to have you here. Very cool, I had not been aware of the harp arm twist or the harparatus. Please update us when you get the latter.
Instead of responding here, I’m starting a new post on the subject so that people can find it more easily. 
Here it is: Playing Harmonica Hands-Free (Harmonica Holders, Neck, Mic, Mic Stand)
Rock on my friend!
Aloha,
Luke