I always used to like the boardgame Mousetrap when I was a kid, so I guess that’s why this intrigues me. Haha. UPDATE: In somewhat similar news, check out the insane sculpture by Chris Burden after the break: Metropolis 2.
Stevemoseley has built a perimeter marble track for his sons room, the building of this track: here.
“Here is a perimeter marble run around my sons room. The track runs around the entire room near the ceiling. The supports are walnut and a majority of the tracks and other parts are birch. Gear motors are run by “AA” battery packs. The marbles are 1 inch diameter. “