Lava lamps have had their fun and place within most homes at one point, and in most cases still are, however they are usually stuck in the back of a cupboard, broken.
Have a kreisel in the shape of a large lava lamp filled with cold water.At the base is a flash the same used with cameras which periodically flashes light ,add Aequorea victoria and watch the fluorescent fun as your family of phosphorescent friends move and float around within the vessel.-- skinflaps, Nov 06 2003 Jelly http://www.lifesci....tures/aequorea.htmlPop them in [skinflaps, Oct 05 2004, last modified Oct 17 2004] http://faculty.wash...mills/Aequorea.html http://faculty.wash...mills/Aequorea.html [squeak, Oct 05 2004] Bioluminescent algae http://www.biobay.com/ [squeak, Oct 05 2004] Kreisel http://www.imageque...bnails/i015_jpg.jpg [skinflaps, Oct 05 2004] Hm. Any way you could get a lamp that would float through the air like a pulsating jelly fish? (Without the stinging fronds bit, of course.)-- DrCurry, Nov 06 2003 According to the link, the jellyfish in question do not glow continuously nor do they flash at one another. They only procude a dim light around the rim of their bell when disturbed.-- squeak, Nov 06 2003 Could you perhaps use one of the types of bioluminescent algae/dinoflagellates/copepods and include a pump or stirrer to move the water around inducing the algae/whatever to glow.-- squeak, Nov 06 2003 Providing it doesn't upset the jellyfish.-- skinflaps, Nov 06 2003 random, halfbakery