I have tried to apply what I have learnt so far in drawing the following coffee mug. There were quite subtle variations of tone when I looked at the actual object carefully.
It was a chance to apply some of my learning about basic perspective too. The handle gets a bit thin towards the bottom. Also the width of the cylindrical shape of the cup widens near the top, partly exacerbated by crossing the double page spread.
In this particular example I have only varied tone by changing the pressure of the pencil markings. This gives a fairly smooth overall gradation of tone.
Kris' Art Learning Log 