I'd love to buy one and carry it, for the conversational value alone. No I wouldn't take one to the airport. Those things are expensive and the advice is, don't take anything to the airport you can't afford to have confiscated by security.

If something frightens or confuses them, why should they bother figuring it out? They declare it a weapon. They demand you turn it over. You protest. They have you busted and hauled away in cuffs. Then someone else in another uniform gets to figure out your little gizmo.

-- Craig