I did a lightning talk / show-n-tell last Tuesday at the MHV LUG meeting and covered one end of a table with the Neopixel-lit bulbs & vacuum tubes & hard drive platters I’ve been playing with:
MHVLUG – Hollow State Decorations – Lightning Talk
Some of the posts won’t go live for a week, but here’s a peek into the future:
Dang, that came out well…
The Smell of Molten Projects in the Morning 
You’re quite the arteest.
It happened when I was thinking “Art!“, so that’s what it is.
Bear in mind: my works are much
cheaperless expensive now than they will be in, oh, say four decades. [grin]I saw a You Tube where someone connected a high voltage from a car spark coil to an old bulb and turned it into a plasma sphere. Then I found on ebay “1 X DC3v-6V OUT 700 kv 700KV” and I wondered…
http://www.ebay.com/itm/1-X-DC3v-6V-OUT-700-kv-700KV-high-voltage-generator-of-high-voltage-inverter-EI-/172088249532?hash=item2811424cbc:g:pXQAAOSw5dNWsxYq
Sounds like a great project. While you’re working that out, keep the horizon betwixt thee & me…
I did this sort of thing a lot when I was a kid. I’d run an old ignition coil from a train transformer to get arcs in burned-out bulbs.