I heard this one from a buddy of mine. "Ladies and gentlemen, if you look outside the right window, you'll see the tiny town of Wedlock, Texas. Our flight attendant (insert name) was raised just ouside of Wedlock."

Another one - wait for a cold day, and welcome everybody aboard. Remind them how cold it is, and let them know that their flight attendant XXX makes the best cup of hot cocoa. I'm not even sure if anyone carries hot cocoa, but when he told this story, the FA had to mix every cocoa individually, and it was a pain. The crew would take bets to see how many the FAs would have to mix on a given leg.