If looks could kill, then the weapon of choice would probably be a lipstick stun gun. In one particularly productive week back in 2012, TSA officers in Burlington, Vt., and Akron, Ohio, confiscated not one, but two weapons posing as harmless lipstick applicators. One was a 350,000-volt lipstick stun gun and the other a lipstick knife with a 2-inch (5-centimeter) blade [source: Burns]. TSA agents also have confiscated lipstick pepper spray.
It makes you wonder, though, isn't there an inherent danger to disguising a 350,000-volt stun gun as something that you might absentmindedly put to your lips at a stoplight? Either way, add "women wearing lipstick" to the list of people not to cross.