The work of this chap is really quite incredible. A video of him presenting his work is available.
He creates Sculptures with move with the wind. So far they can store energy, detect water and reverse direction, and when it gets very windy, hammer themselves into the beech (they are designed to work on beeches).
What particularly interests me about this is he uses genetic theory to create these sculptures, and I have an interest in GA's to solve optimisation problems in IR.
(Hat Tip: David Thompson)