Marble Run Chain HoistMarble Run Chain Hoist Assemble me. Let my marbles go! What is it about marble runs that makes them so compelling? Kids and adults can watch marbles going down a track, passing through various obstacles, for hours on end. Marble runs and races have become an unexpected YouTube phenomenon, with thousands of videos racking up millions of views. You choose a marble to watch, to cheer for, you wonder which path it will take, you put yourself in the