When you're packing your bags for a trip, there's always that moment where you stop and wonder what you're allowed to bring. How many ounces is it again? One airport had a very simple and effective way to remind people what (literally) flies. The Aviation security officers at Vilnius Airport, aka Lithuania's main airport, wanted to spread a message of airport safety and Holiday cheer. So, they made a Christmas tree entirely out of items confiscated from passengers during security screenings.