This luxurious mechanical music machine is hand-built in Sweden and uses falling marbles to generate incredible symphonies as they strike the keys of a built-in... More
You'll have to think in three dimensions and expand your spatial understanding to guide a small marble through a complex maze of channels, zig-zags, hairpin... More
These huge balls are just like the little bouncy balls found in the vending machines of yesteryear that cost only a quarter, except these are massive, hypnotically... More
Massive $30,000 three-dimensional spherical labyrinth challenges your manual dexterity and spatial understanding to maneuver a marble through a complex network... More
