Here is a new setting for 50's Kid's Sketchbook material for ZBrush 3. The old ZBrush 2 material wasn't looking so well in ZB3, so I made a new one.
It's good for taking a model and making it look like it was rendered in pencil.
There are 2 materials. The first is the Paper material. Just fill a background layer with this using white as a start.
Then drop your model on a new layer OVER the paper. Use the included No. 2 pencil material on the model.
Hit render and don't use shadows and your work will look like pencil. It's a quick render too...
Here is an example image:
Now get to work and post your results...