At the end of last year I did some "Graphic Facilitation". It sounds swanky and essentially I was working live illustrating the ideas brought up in a focus group. It was great fun and last week the same company got me in to do a "live farewell card" for their retiring boss. I did a big caricature in the middle an then employees came up and told me stories about the boss' time at the company, which I illustrated.
I had a blast and did the biggest caricature I've ever done and if I could do more of these I would jump at it.