Gearjits Gumball Machine Marble Coaster From MindWare. Build a working Gumball Machine Marble Coaster! This elaborate system of gears, rods and ramps has the nostalgic look of gumball machine with the thrill of a working marble coaster. The fun begins by filling the holding globe with colorful gumball ma... - Gearjits Gumball Machine Marble Coaster From MindWare.
Gearjits Telescope From MindWare. The thrill of constructing your own working telescope becomes even more fascinating as the assembled, elaborate mechanism brings faraway objects into focus. Enjoy an up close and personal view of objects that are up to 500 feet away! Featuring a leat... - Gearjits Telescope From MindWare.
