Web+Resources+Building+Devices

http://www.sci.mus.mn.us/sln/tf/s/shoebox/shoebox.html Make your own toy whirligig.
 * Shoebox Science** //from the Science Museum of Minnesota// *

]]More motion machines that you can build.
 * Motion Machine** //from the Science Museum of Minnesota*// [[@http://www.sci.mus.mn.us/sln/tf/m/motionmachine/motionmachine.html|http://www.sci.mus.mn.us/sln/tf/m/motionmachine/motionmachine.html