I suppose this is a good demonstration of how my mind works.
In front of me on my office table are two china markers. You know, the kind with the black waxy middles and you pull a string to tear the paper so it unwinds and exposes more of the core? I pick one up, and stare at it for a moment, remember what I had read about them being able to draw on almost ~any~ surface.
For those of you who were every curious about whether or not a china marker would work on human skin:
Yes. Also, I know after doing this that I need to go back to the basics and start practicing drawing human anatomy again, because that is NOT accurate.