Here are links to .pdf files so that you can print your own
These used to be hosted by Hasbro but for some reason they changed the link and I can no longer find them on their site. These could be great to use as original graphic files to make your own money for games. Easier to print of a few hundred dollars in custom money than to get your own custom poker chips! Of course, if you want to get your hands on real replacement Monopoly money you can get it here for $16.