Hi all..
I know people have a wide variety of opinions on this subject but I find the hand controller for the ZWO AM3 mount to be rather useful and I like having it at the ready.
Hanging it by its hand strap didn't work well because I'd have trouble in the dark removing it or putting it back on whatever I had hooked it to. If I dropped it in the hammock then on occasion the joystick would get pushed one way or another and the mount would begin moving somewhere it shouldn't.
I happened to see some very nice 3D printed hand controller brackets on etsy but they were out of my price range. I had a budget of $0 for this project. I opted to make my own out of the top of a can of PB blaster and it worked surprisingly well. PB Blaster happens to have a nice red cap without any internal structure, plus it was sitting there undefended on the shelf. A few minutes with a Dremel tool and voila! I secured it to the tripod leg with a length of velcro tape.
Maybe it will inspire someone in need of a place to hang their hand controller.
Bill