The Lightbulb terrarium- This site tells you how to make TONS of different terrariums (not just the lightbulb one)
What is the green light? Actually the Green Light is a plant grows around an energy saving lamp in a recycled pet-bottle. You can grow it or cut it to dim or brighten the light. This ecological idea created by Twan Verdonck for DreamingreeN. “The different plants are going to be available in addition to the current hedera (plant-speak for ivy), including grape and tomato vines.
NanoLight - The world's most energy efficient lightbulb! by Gimmy Chu, Tom Rodinger, Christian Yan, via Kickstarter. A new LED lightbulb that is the most energy efficient on the planet. The NanoLight takes energy efficient lighting to the next level.