13 years ago this my was my first efforts to self learn computer photo manipulation. The original was my work profile photo, and the results are based on iconic images. Just a bit of fun :-)
I once printed up a note with that on for a laugh. It was on a work printer, so good quality, but not "trying to fake currency" good. It looked quite surprisingly authentic though. I carried it around for ages until one day I lost my wallet. I like to think that someone actually tried to spend it, and maybe even got away with it.