options for a tabletop flame

I like to watch a little flame dance around. Sometimes I stare for a while, I just do.

• ethanol fuel burns in an almost completely clean way, allowing it to burn indoors for longer
  • safety:
    • Wikipedia article. It's possible that more sources will show up there later.
    • "Ethanol is a flammable liquid that technically should burn cleanly. However, under certain conditions, its combustion in a fireplace is imperfect and may produce carbon monoxide (CO) and certain other noxious gases"
    • a corporate-written summary of scientific data
    • they do generate a lot of fine and ultrafine particles
    • a detailed study by the European Commission that recommends ensuring "good and continuous ventilation", to pay attention to any unpleasant odor produced, and that prolonged use should be discouraged
  • I like this glass-bodied lamp, because metal-bodied ones can get hot after a while. These are all made by the same manufacturer likely: [1] [2] [3] [4] [5]
  • I might also try this one. It also likely has a single common manufacturer: [1] [2] [3]