Hi mate....I draw and shade the image in pencil putting perhaps 70% of the tone on, then simply using coffee in a plastic cup form the vending machine at work, and one on the plastic stirers (turned upside down) i apply the coffee....because of the serated design of the stirer, i find that when i dip the same in the coffefe, it holds it in the shaft, and layers on the paper almost like an old fashion quill......... I find the mocha choca late (or number 2 with sugar) gives the best tones!!! lol