Rollbahn ("roller-run") color and movement toy, designed by Mike Ayres and Roger Limbrick, Switzerland, 1984, by Naef Spiele. The colored discs, with various designs and patterns, take almost a minute and a half to completely descend the zig-zag pattern of the frame, slowly mesmerizing with alternating shapes and visual trickery.
Wall mounted ball run. This would be great for kids who are too young for the marble runs. Could be used as a music installation if there are movable obstructions in the pipe that make sound when a ball touches them
as a piggy bank! This would be perfect for learning about the space coast. We would need to paint the bottles white with acrylic paint ahead of time, then let them decorate the (Bottle Rocket With Egg)