These glass bottles each contain a glowing resin "flame" in orange. Each flame was handmade, molded in silicone, then cast in resin with phosphorescent pigments to achieve the glow.

The large one belongs to bryndlesibe who gave me the idea by commissioning the first one, but the other two are for sale. They are $15 each, plus shipping ($3 US, $10 International) and I can make customs in any color I have available for the same price. Multicolored flames will be one dollar more.