Don't post stuff I make often...
Just finished this this afternoon. I made neon letters a while ago - one for each of our kids. Making neon letters, especially small ones, is tricky particularly when, like me, your hot glass skills are mediocre at best. I had several false starts and maybe 5 failures for each letter I successfully completed to filling with gas & bombarding etc. This tube is actually argon rather than neon filled - argon gives a very light blue/whiteish light rather than the orange of neon. I cunningly call these "Letter Boxes". Subtle, eh?
So, this is "R" for Robert. The box is oak reclaimed from an old shelf with Macassar Ebony splines. The letter is backed by a nice piece of Honduras Rosewood. The back is birch faced very thin ply recovered from the base of an old drawer, held in place by socketed M3 bolts to discourage prying fingers - there's 2000V in the box. Finish is Liberon Finishing Oil.
The high voltage sign transformer and a Sonoff wireless/internet switch (so the unit can be controlled from my son's phone) are in another tamper-proof box with special high voltage cable connecting it to the letter.
Colour in the photos is a bit green as something in the electronics is confusing my phone camera.
One more to make yet...
Here's a picture of a neon M I did a while ago with half blind dovetails for comparison.