Has there ever been a prop or costume/wardrobe from a movie you thought was so cool you had to own it, make it, or steal it? If your answer was along the lines of "Hell Yes!" then prepare to be inspired. Adam Savage of Mythbusters has amazing skills that he uses to create or collect movie replica props and wardrobe. Among his personal stories is an amazing one of how fans that wanted a replica Indiana Jones hat ended up creating hats for the 4th Indy movie. They now make them for a living, selling them as officially licensed hats, and yes, Adam is wearing one in the photo above. Best of all he even gives some clues on how you might get started on creating your very own movie replicas.
Source: 37signals - Signal vs Noise (http://37signals.com/svn/posts/3338-inspiring-talk-by-adam-savage-of-mythbusters)