The Remove Before Flight Keychain from Rotary13B1 is a must-have for real aviation buffs and virtual Flight Simulator experts alike. The keychain and the printing on it is a perfect replica of the real warning signs that are hung on airplanes that are still being inspected before takeoff. The bright red color and the bold double-sided printing is supposed to make it very visible and hard-to-miss. It’s meant to prevent an awkward moment halfway through the flight when the pilot realizes something’s wrong because a sleepy maintenance guy missed a part of the daily drill. As far as the keychain is concerned, whatever you hook it to will be easy to find at home or in the clutter of a black hole filled with a gazillion tons of junk otherwise known as your bag.