You can make any sort of flexible joint move with a little gear driven motor out of a toy robot or car.  Just wrap some fishing line around the drive wheel and then thread it up and around the joint. You can run one string through several joints. Here I made a worm out of sections of pink foam plastic and then taped them together. 

Click the picture to see it work.

                       

This entry was posted on Tuesday, April 10th, 2007 at 7:37 am and is filed under Simple Fun. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.