World's greatest paper rollercoaster

Who needs expensive plastic toys when you can build marble rollercoasters out of paper? This coaster is over 12' high!



Here's a picture of a shorter one:

and the video to go with it:


For more pictures and videos of various paper coasters, check out his website, PaperRollerCoasters.com. It looks like he does a lot of school visits -- maybe this would be a great outreach activity!