I make my own key chains for all my machines. I don't recall the site specifically where I got them but I had ordered about 50 or 60 of them (2"x3") for less than $0.50 apiece. Then go to the Internet Pinball Database and copy the photos of the Pinball Flyers front and back and then reduce the print size until they fit. I just keep the files in a Word Document so whenever I have a new one to do I already know how to size it.