Photophore is the word used for marine animals that glow in the dark! It is also what the French call little candle holders that let the light filter through in a pretty way.
I made these little tealight holders to decorate my dining table this Christmas. I wet felted them around a resist and then shaped them around the glass holders. Finished then with a few crystal beads. The felt is quite fine and I like the way the light flickers through it.