Well, I'm currently sculpting the hand from this: http://giger.com/gallery/book-biomechanics-d3.jpg

6 hours in, and I've done the basic shape of arm, hand, all the fingers (no thumb yet), detailed two of them fully and have another one partially done. The main difficulty is working out what the palm and inside side of the fingers looks like, I've decided to make them quite skeletal in appearance.

I have four hours left, part of which has to consist of glazing/rubbing oxide into it after being biscuit fired.

I'm gonna run out of time... >_<