Very interesting! That green one is way cool. I had a likeness of small neon lamps when I was young also (and still do to an extent). I loved the nightlights that had them inside. I still have my Tom and Jerry N/L from my youth - still works.
My favorite was a little TV set looking box from Citizen's Motor Bank - the screen with the bank's name was lit up by the bulb. No telling where it went...
I use a lot of the neon flickering bulbs around the house for ambience, more for Halloween.
I have some 25 year old dimmer switches that are lit up by some neon bulbs.
I also have some larger bulbs with the multi-colored flowers and such that use different chemicals inside to make the colors.
Ever toss a handful of these bulbs in the microwave? It is quite a disco light show!