This is literally a museum I'm thinking of starting. To make the experience more authentic, all of the artifacts related to great cons throughout history, are forgeries. Also, at the gift shop you'll be able to get a t-shirt with the caption "This shirt's a cheap knock-off of the ones they sell at the International Museum of Fraud and Forgery".
Being a Fraud Investigator I would be interested in seeing some of the forgeries.
Not more than $10 bucks though. I can get copies online but seeing the originals would be interesting.
That's right where I was thinking: $10 for adults and $6 for children and seniors. Most of the displays would be similar to what you see in a history museum with stories about things like Tammany Hall and DB Cooper. If the project does really well eventually I'd like to add an art gallery, featuring forgeries of famous paintings that were good enough to fool art experts.