I Have just the perfect showcase for you!
In reality it is a joystick which works on resistance, the harder you press the more it the RB-05 will turn. The knob doesn't move around a whole lot though.
I don't know if your still looking for it, but heres the original link i got from leatherneck that i saved in my bookmarks :P
https://audiojungle.net/item/80s-trailer/13615922?s_rank=1
I think it was made by LumenMedia, or it's just a reupload. :D