Biomimicry finds a new home on our ceilings with the Sycamore Ceiling Fan, designed just like the efficient Sycamore tree pod. This ceiling fan runs on lower energy consumption (1/2 the normal amount, in fact), with less noise, and has great modern looks.
Sadly, it's apparently only available in Australia at this time, though a note in the Treehugger article says they're available at Dan's Fan City here in the US. No word on price yet, either. Let us know if you spot it somewhere!
Thanks to Gizmodo for the great image compilation.