Get your kids a marble run, so they can become engineers when they grow up. They might even create something like this someday!

(Skip ahead to 7:56 to see it in action)

The kit in the video is home-made, not sold in stores, but Terra Toys carries a few different marble run construction sets: Quercetti plastic sets from Italy; Haba wooden sets from Germany; Alex brand wooden zoo themed sets; and though it isn’t in stock right now, we anticipate the return of the popular Quadrilla wooden sets in late fall or winter 2010.