I myself am not too crazy about this idea (this is my first post), I have noticed that some of my friends have been falling off their skatebaords when the roads are a little rough under their feet. So if there was a little pad that attached or clipped to the board that was connected to a strong little fan, they could press down on the pad, and the harder they would push down, the stronger the fan blew. Causing the user to have a safer, (maybe) smoother ride.