A few years ago I created a presentation booklet acting as a proposal for a graphic novel, titled Plato Journey. It was drawn during my breaks at my last job using a ballpoint pen I got from a hotel. This was made before I knew anything about drawing comics and it was a good learning experience. (For Example) One thing I learned was, don't draw a comic with a ball point pen.
If you would like to check it out, you may now download a PDF version by clicking HERE.