Blimey, where are all the mock-up pics? ;) Just figured there would be more, is all. Bingo, what are those puppets in your last pic with Vader and Fett from? The one on the left looks extremely familiar!
Oh well, I only have a few to contribute and many have seen them before:
Gornssk!
May as well throw this old one in here as well:
And one joke line for now:
TARKIN: Surely he must be dead by now.
VADER: Don't underestimate the power of the Force. And don't call me Shirley.