Has anyone thought of trying this ???

And to reply to the original question.

Don't they make travel hair dryers that plug into a vehicle cigarette lighter? if so,then you could get passed an inverter all togeather!

I would the rip the dryer apart and undo the wiring to the on/off,low/med/high switch which ever it may have and I would solder the wires needed and run them to a dash mounted toggle switch so you dont have to reach under the dash every time to turn on your "defroster" lol.

Great idea though, go with it.