The first night, we will use charcoal. The second and third nights we will use oils.
For the first night, participants should bring vine charcoal in a variety of hardnesses, a kneaded eraser, and either paper, canvas, or board, sketch paper, and a fat, black marker (paper for charcoal or pastels (Strathmore, Canson, etc)). Also it would be handy to have some small/medium tortillions (blending stumps) for the first night.
I recommend these colors:
Alizarin crimson (or permanent rose)
Cad red light
Cad yellow light