I've had a couple people come up to commission me at shows to draw an actor or actress who is appearing at the show and have them sign the art. They're certainly more unique than just the standard publicity shot. And it's been a blast for me, too. I got to meet Ian McNiece, who played Winston Churchill on Doctor Who because of it. At Wizard Ohio, I drew Ghost Hunter Grant Wilson hunting a different kind of ghost. Mariann, who commissioned it, loved it, and so did Grant.
Happy Halloween!