Light artists

I have been searching for some artists that have an interest purely in creating light art and there is an abundance of beautiful pictures out there. I'm amazed at how pretty these pictures are. Please follow the links below, if I could come close to producing anything like this I would be really pleased. I'm hoping however by using lightsabers instead of light pens I may get some interesting results, I'm also hoping that I don't need to make any adjustments within Photoshop to improve the quality.

http://insurance-quotes-for-you.com/Light_Graffiti.html

http://www.flickr.com/photos/lichtfaktor/show/

http://flickr.com/photos/unklstuart/sets/72157601507669278/

http://www.targetti.com/art/en/section_1/Light_Art_Collection

It would be really nice if in due course I could take some LEDs and imbed them in one of those really bouncy balls and use that to create freeform light art. I might look into this for my final project.