Today I did a few things, among them a test of how the watercolour pencils fair when drawing on wet paper (not too well with moleskine paper, I'll try again with proper watercolour paper, when I get it). I also did a tonal chart, which was quite worthwhile. I think that on the moleskine paper, if I am to add water it will be once the pencil is on the paper. In addition I tried a straight graphite drawing using a 2B pencil. To prevent smudging this has been treated with fixative spray.
Overall, I'm pretty pleased with it given my complete lack of training and practice. The shape isn't quite right, it's too narrow at the base - and the odd sheen eluded me. The lid area is not quite as I hoped, but this area was pretty tricky has it was all curve.
I went into the art shop again, I got a small stick of charcoal and will be experimenting a little with that. I don't know what I'll get along with, so I'll try a little bit of several things and see.