The Addams Family pinball always gets the coolest user mods.

Best invention is the Namco "Prop Cycle" (at California Extreme game/pinball show) that a owner hooked up to a TAF. You pedal on the bicycle device to give power to the machine. Great way to keep fit, and hone your flipper skills. I'll try to grab some photos this year.

I tried out the bike AF at CAX last year. A fun novelty and very hard to play since you can't nudge and you're peddling the whole time. There's a video out there of Bowen Kerins on the thing. I think the played the finals of the pinball tournament on it one year.