Nixie Tube Thermometer Kit, Some Assembly Required
This kit does not contain anything edible. Seriously, don't eat any of this stuff, it will probably kill you. Real nixie tubes are the "LEDs" of yesteryear. They proudly displayed their digits on scientific equipment, voltmeters, counters, and control panels. While they're no longer in production, we've managed to scrounge up some limited edition DIY sets that let you build your own Nixie Tube Thermometer.