Daniel Rozin is an interactive artist who works around the concept of mirrors, making many different pieces that reflect the work around them using shadows on tilting ‘pixels’. The videos below are demonstrations of my favorite two, but check out youtube for the many others.

[youtube http://www.youtube.com/watch?v=1ZPJ0U_kpNg&w=420&h=315]

[youtube http://www.youtube.com/watch?v=gCih7kSH3T8&w=420&h=315]