Mark Wahlberg, "Boogie Nights"
Marky Mark wasn't exactly as well-endowed as the costume designers thought he was when designing a prosthetic penis for him to wear during filming. The first one was way too long, and the second one was accurately to scale. He actually kept it when the movie wrapped! "So this thing was down past my knees," Wahlberg said. "Everybody thought it was ridiculous, and I had to come out on the set to show it to everybody. It was very embarrassing, BUT the shorter one they remade is still the only prop I've ever kept from a movie."