I don't know if there's already a thread for these, but I've been looking at cosplay videos all day long. I found a few interesting ones.
Here's one I really liked, this guy has done another video on a Con in Nebraska: https://vimeo.com/54128041
And then this guy does stunning videos from all over the world. What I would give to have his job!: https://vimeo.com/40515437