Blood Lamp
Now here is a piece of art that will make you think about energy consumption…
The Blood Lamp…

For the lamp to work one breaks the top off, dissolves the powder, and uses their own blood to power a simple light. By creating a lamp that can only be used once, the user must consider when light is needed the most, forcing them to rethink how wasteful they are with energy, and how precious it is.
Blood Lamp from miket on Vimeo.
Via miket.co.uk