So I'm building new entrance pillars for this year. I was thinking of a dedicated air line, prob 1/2 inch hose to a 1/2 inch solenoid fitted with a power washer tip. All inside of the pillar with the hole coming from a skulls mouth on side of the pillar. As they walk by, they get a blast of air. Not an air canon but just a burst of air as they walk between the pillars... What do you all think, or have any of you done this.... Don't be "scared" to criticize lol!!!!