Five cool mechanisms made from simple materials

The Q makes whimsical mechanisms mainly from wood and cardboard, using basic hand tools. In this video, he shows how he made a "fully working gearbox made out of cardboard, Rock 'em Sock 'em board game, a skateboard from newspapers, incredible miniature railway with train track changes, and, last but not least, a semi-auto coin sorting machine from plywood!"

Image: YouTube/The Q