Figure drawing with water soluble graphite

I hadn’t planned to go to this figure drawing session after work, so I on my way there I stopped by the Blue Rooster in Los Feliz. I saw these on the counter and wanted to try sketching with them.

It was interesting, and I’ll definitely use it again, maybe with a larger brush, though. I started by loading the brush directly from the stick, but found I could get more consitently dark wash if I rubbed the graphite on paper first, and used it as a palette.