A handful of good graphite machining images I located:
Rodrick-The Man and His Machine for JKPP
Image by Kim Schuster
Graphite on paper 6B-8B
Rodrick, I am going to ride your bus ahead of you retire. How long do I have?
[http://www.flickr.com/images/46589619@N00/6252728580/in/photostream]
Harvest
Image by psyte
Graphite and colored pencil