Here's an excerpt from a cartoon I drew recently for a business magazine. It was a last-minute decision to use a real image of a banknote and I think it, er, paid off as it works quite well.
It was for an international magazine, hence the use of a "Benjamin" rather than a British banknote. This kind of thing is quick and easy to do these days, thanks to Google Images and Photoshop. I had to tamper with the banknote a bit, making the "100" bigger and clearer. I hope this doesn't mean I'm going to jail?
Royston's portfolio website