I found an interesting news article this evening. "Lufthansa Pilot Nabbed with Deadly Slingshots" "A random bag search at Frankfurt Airport in Germany turned up two deadly slingshots and ammunition in a Lufthansa pilot's luggage. The pilot had just flown in from Los Angeles. " "The pilot is potentially in breach of both weapons laws and air safety laws and faces up to three years in prison under German law." Lufthansa Pilot Nabbed with Deadly Slingshots - AOL Travel News I didn't see if this was carry on or checked baggage. Better not take any more slingshots to the airports.