Ok, but why stop here? You've effectively created a rotary potentiometer in one dimension, you could add two more dimensions like an analog thumbstick on a game controller. Do any controllers have a twistable thumbstick?
Also, like other commentors have stated - this could be a jack too, so you could have a jack knob analog stick.
BUT WHY STOP THERE?
You could mount it on a linear pot/slider.
BUT WHY STOP THERE?! (help me)
You could daisy chain pluggable rotary analog stick jack stacks...
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The madness has taken him
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