My wife picked up this neat little number at the local Ace Hardware. It's an electronic tea lite candle that flickers. Has an amber LED in it, although I could not discern the circuitry that makes it flicker. I thought you guys would like to see it as it looks perfect for simulating campfires or battle damage type fires. I might post this in the sci-fi section for those guys too. They come in packs of 6 and run about $7.50 for the pack:
Here's what it looks like turned on:
Here's a shot of the innards. The "flame" simply unscrews from the base:
Shot of the bottom of the base, containing the switch: