Novascopes shouldn’t need any introduction. They have gone viral on Reddit and other social networking sites a bunch of times in the past. This 12″ Slim Star Novascope by David Sugich is also worth a look. It is a stained glass geodesic sphereoscope that creates amazing patterns when exposed to changing lights.
The Slim Star Novascope has a triangle base. It has loose beads inside that move as you move the scope. The above video shows it in action.