Neon Reactor MKIII
I made the orginal Neon Reactor clock many years ago now, when I first started out making Nixie clocks. I was delighted when I was asked to make another one! I used the same piece of test equipment the first one was made out of, but added another Dekatron tube, and some more LED lighting than the first.
Makes for a really interesting looking clock! There's a picture of the MK 1 in the images.