This is one of the more unusual and innovative ceiling fans we've seen in some time.
The contemporary design features fan blades that hang down when the fan is not in motion, turning the fan into a decorative ceiling light (click on the link below for more product pics).
Hit the power and the blades lift as the motor spins. Centrifugal force creates the lift and the breeze. Pretty neat! The Monte Carlo Airlift Ceiling Fan.