Lighting Forum
Came across these earlier,
Might be of use to those on a tight budget and some time on their hands ,
http://www.youtube.com/watch?v=YqucnKCOR1E&feature=related
Or
http://www.youtube.com/watch?v=0JSMQk61xQ8&feature=related
If anybody tries this please post results here, i'd love to see /hear...