The two MiniVex controllers in the photos are my most recent creations for the Atari 2600 and 7800. Since posting these publicly I've received some interesting suggestions for future models and enhancements to these particular two, such as stand-alone mini paddles and stand-alone mini joysticks. A couple of my offerings for the Vectrex were directly suggested by folks in the Vectrex community.
So I ask you, 2600 and 7800 devotees, what would YOU like to see in future controllers?
I can't afford to pay anyone, but the people whose suggestions bore fruit have yet to complain about the free controllers they received...