Helmet Wall Mount

I wanted a wall mount for my helmet that mounted the helmet close to the wall and remained pretty hidden once a helmet was placed on it. This is the fifth iteration of the mount and it seems to work pretty well at this point. The screw comes in two different forms, one with the knob and screw as one piece and one where the knob is separate. I figured that some people would want a knob they could use between all the wall mounts instead of having a separate knob on each. Here's a post about it