The "evolution" of characters

[Artoo]

Perhaps there is another thread like this out there somewhere, but I would like to see pictures of the different characters and how they've "changed" throughout the year. You know, like how Mickey looked in 1971, in the 1980's, and now.
Unfortunately, I don't have any pics with me (all of my old ones from the 80's are at my mom's), but maybe some of you can post pics?