Tom Welling had his Kielbasa Sausage swinging in his jeans running in Smallville scene slowmo one time, semiflaccid
Amazingly Roger Moore was packing it large in his B movie dressed as a tribal Roman - http://youtu.be/0h4mtPvkdq0
All of you size-queens keep forgetting someone in every list. Who is it, you ask? I've never seen him on any hung list. Jerry Seinfeld, you dolts. He used to go into Max's Pharmacy on Santa Monice across from Mayfair Market and buy extra extra large condoms. I know Jerry will thank me.