The amusing irony is that one of the counterfeiters most frustrating to the US Secret Service was a retired old man who every now and then counterfeited $1 bills. Poorly.
http://www.nydailynews.com/news/crime/finding-mr-880-case-1-counterfeit-article-1.109016
I like the one dollar bill thing. Dark when you slip tem into a dancers panties. Dancing girls wont know till later.