Interactive aquarium full of bioluminescent plankton called dinoflaggelates ("dinos"). The plankton illuminates the dinosaur-shaped environment when you gently shake it. Just let them bask in indirect (Tech Gifts Dorm Room)
I want one of these SO BAD! EcoSphere - inside these sealed glass balls live shrimp, algae, and bacteria, all swimming around in filtered seawater. Put it somewhere with some light and they will self-sustain for years, no feeding or cleaning necessary.