BioGlo

It's so hard to be a minimalist when things like THIS EXIST...
Think LavaLamp, meets aquarium, meets star trek.

Bioglo contains hundreds of tiny microbes called dinoflagellates (a.k.a. dinos). These dinos have the natural ability to absorb the sun's rays during the day and emit a mysterious blue glow when shaken at night."-source

It's being marketed not only to folks for their homes but also an educational tool for the classroom so that kids can understands some of the awesome lifeforms our planet has that we should be protecting!