PIE is “Playful Invention and Exploration” - or integrating engineering with artistic expression. Their web page is a treasure chest for any maker.
Lightplay. This is one of their awesome art projects. Also try “marble machines”, the animations on the page are a joy to watch.
Have a look at the exhibit I am currently working on. I started to experiment with “video feedback” and soon got fascinated. This video shows an example of the intricate patterns that emerge when you point a camera at it’s own picture. There is really no processing or fancy electronics involved, just feeding the picture back into the camera and watching how it gets replicated over and over again.
This made my day (week, month!): I just created a group on Flickr (photo sharing web) dedicated to the Exploratorium. The group grew to almost 100 pictures taken at the Exploratorium just 2 days after the group opened! Many of them come with really interesting comments/discussion. Click: