another suggestion is monoprinting because it allows for a nice tension between accident and control. I like the quality of lines you get and students seem to take to it whatever their skill level.
draw with pencils or pens on different thickness of paper for different effects.

 PS I like black gel pen precisely because it smudges.. or rather runs, try on wet paper!

Rachel

On 15 Sep 2011, at 11:19, Alison Craig wrote:

What about "drawing" with scissors or a knife?  For example, creating a drawing entirely from the negative space cut from a contrasting  paper & glued down, without any drawn marks at all.
(p.s. I find a black gel pen useful for continous line drawing)

-- 
Best wishes,
Alison