http://www.ebay.com/itm/250885711606


A perfect traffic light for a haunt.

throw this up on a pole, add a car front with headlights and a horn on a pneumatic piston, connect it all to a controller.

show walk as the guest walk past, and when they are half way, click the sign to dont walk, move the car forward, click on the lights and horn and watch them scream and flee.