Rudy - Magic Match
In the scene where Pete and Rudy are in the lunchroom at the Foundry on Rudy's birthday, look at the match Pete is using. He strikes it to light a cigarette and it burns half way down while he's talking. In the very next scene, he places that same match in a birthday cupcake, however you can tell it's a different match because this one was freshly lit. It has hardly burned down at all.