You show a wooden stick with a propellor at the end and another smaller wooden stick. You rub the small stick over the cutouts in the larger stick and the propellor starts to spin fast in clockwise direction. You then switch the smaller stick end for end and tell that makes the propellor spin in the other direction…which of course works just likes you told them.
At the end you hand out everything and when the spectators rub nothing happens!
We supply the specially made propellor stick, regular wooden stick and (dutch language) online instruction video.