I also shot an assignment this past week. Probably the most effort I've really ever put into shooting myself. It was for a high key/ low key assignment. I haven't shot my low key yet, I'm not 100% sure on what I want to do for it yet. My high key idea was to just paint myself white and stand against my white wall as a backdrop. I figured that my red hair would pop out while the rest of me just blended in with the background. I shot a few frames like I had planned and got bored fairly fast. I then got the idea that maybe some more red in the photo would add a little more interest. I looked around for some old lipstick, but had no luck. Then I remembered I still had some hair dye left (which was pretty perfect, keeping the same shade of red consistent through out) I started with just having some in the palms of my hands but quickly got 'carried' away and was fairly covered in red hair dye. It also helped to fill in the spots of the white paint that had started cracking and peeling off.
