When I was a kid, there was this brilliant antique game in the Penny Arcade at Disneyland. It was from the early 1900s like most of the games there — many of the others were those hand-crank movies with pictures on cards that flip past. Love those.
It had an electrical coil inside, under glass. You grabbed the two metal handles that stuck out from the front, and it sent an electrical shock through you, and continued getting stronger until you let go, or the dial reached the top. I never managed to stay on it the whole time. After 15 seconds or so, I’d guess, it really started to hurt. And you could see the muscles in your forearms twitching.
So I’m guessing it’s not there anymore.