The Faces of Bilbo
"Bilbo went through a few faces. There were a couple of noses. "They had the idea of having a more snub nose, and then they decided that my nose was weird enough. So it went from a more middle-aged rocker to being what Bilbo looks like now, which is a middle-aged rocker. So it was gradual; it wasn’t one minute you are you and then the next minute you are the character. It was incremental."
-Martin Freeman (Bilbo Baggins)