This from ThinkGeek “lets you create a simple Rube-Goldberg device to amaze your friends.” Video after the break. Click here for one more picture.

The Cological Marble Run Construction Set is imported from Japan and allows you to create challenging custom courses for your marbles. Everything from zig-zag tracks, to a mini rolling car to whacking mallets until your reach the end and pop up the flag with a little song. You get 23 different types of mechanisms for moving marbles with 97 parts total