I remember when my friend Julian brought over his Epyx 500XJ so we could play doubles in Gauntlet. As we walked in the front door, my dad noticed the joystick and said, "Aaaaaah.... The Ergostick!!" Julian and I just immediately busted out laughing. Neither of us knew what the heck he was talking about!
Incidentally, my favorite stick for Commodore 64 was, without a doubt, the Wico Boss. This stick was the first we had, and it outlasted all the other six-some-odd! It would still be around today if it weren't for me intentionally breaking it because it was the devil. True story.