Use tilt of head to control indicator

With motion detection / 3D scanner technologies it should be possible to collect alternative forms to input from drivers rather than relying on existing control mechanisms. A possible use of this would be to allow a driver to control the turn signals through a left or right inclination of the head. This would be a natural motion for a driver, and would allow the signalling to be done without loosening the drivers grip on the steering wheel, and would allow signally whilst the driver's hand is on the gear stick (for those cars where the turning signal control is on the same side of the steering wheel as the gear stick).

A short inclination to a particular side would turn the turn signal on for that side. A short inclination in the other direction would turn it off.