There are six simple machines that Physicists use to redistribute forces. Rube Goldberg was famous for combining these in creative, complicated, and comical ways to perform a simple task. This Mine Shaft Marble Slide is a great way to get started on building your own Rube Goldberg machine by making a machine do a simple task in a complex way.
Aerial Screw by Made Tschikay on DIY.
A description of this awesome machine from maker Made Tschikay:
It’s a model of a 1480 sketch from Leonardo da Vinci. An early idea of a flying machine. Although modern scientists do not believe it can fly, because of the weight/lift ratio; and built like that, the whole thing would spin.