This is actually a very complex piece, and deserves some high accolades. First off, the outer envelope is super green. It originally was sealed up, and is opened along perforated lines at the top... just like in the movie. The envelope is wrapped in cellophane plastic. I have no idea how the dude made these, but they are very professional and nice looking. The tickets inside appear to be laser printed onto transparency paper. The set includes two tickets, separated by some tissue paper. Of course, the really cool "Bravo!" that comes out of the top is a nice touch.
I don't know what was used for reference on this project, but it turned out great. I suspect some info may have been gleaned from the infamous "French Book".