Dangerous I know......
people like the idea of controllers like the powermate, but I may have found the solution, if someone would like to write a girder plugin.
Think of the iDrive. You get twist for scrolling, joystick movement for navigating through control screen icons and a button on top for selecting.
Now. Look at what arcade type interfaces and equipment you could use.
First, how do you hook it into the computer.
You use this
And some programming software could be based on
Some of these or a girder plugin.
For the stick hardware
these two sticks could provide the twist and joy movement for mouse and scroll.
And
This button could be either mounted on top of the stick.
then make a large disc type knob to firmly fasten to the top of the button (cylindrical, to totally cover the shaft), and sprung loaded, so you push down it engages the switch (although as the switch is momentary, it should push back anyway).
Best way to mount the cylindrical knob would be to carve splines into the stick, and into the hole though the centre of the knob.
That way, it will allow the knob to move up and down, but still be a good enough fit turn the stick.