I’m touched, it’s like seeing your child graduate. I have inspired others to follow and improve upon my works. After seeing my photo of the "neo-Victorian New Age Flemming like valve" on Flickr, Donald decided to hollow out a light bulb and build one of his own. Hats off for using a UV LED to excite the dye out of a highlighter marker! He also incorporated a Basic Stamp microcontroller in it so it has some nice flickering when it’s started. Watch the video to see what I mean.