In class today I veered a tiny bit off course: we were to be doing Positive and Negative Contour drawings; there were a lot of nifty things set up for us to draw, but I pretty immediately gravitated toward the skull. I very barely did any contour work at all, so. But I did at least meet one of the requirements: no shading. You have no idea how badly I want to go back at that drawing, but I have to leave it as it is.
Black and white charcoal pencils were all I used, along with liberal application of a kneaded eraser. There's a lot wrong with it, but, damn. I'm really pleased with it. Typically I suck at drawing things that aren't from my head.