This video shows, describes and demonstrates my entry for the Flashing Light Prize 2017. While I was working on this, Ben Krasnow at Applied Science, posted a similar entry. His entry may be a tad smaller than mine, so I won't try to claim 'world's smallest" as he has done, but mine has a unique twist that I think makes it my entry very different from his. Ht, you'll have to watch the video to see what I mean.