I've just finished this piece of work and I want to share it with you, before it's gone, because these are going to be sold on a exhibition soon. I used a simple ball point pen (hemijska olovka). It was fun, most of time, because the ball point pens have tendency of throwing up all of the sudden the content of their bodies. Which can be of course very irritating. This one didn't do such a thing, though when I finished the drawing I noticed that it lacks the strength that a rich black ink pen I usually use leaves on the paper. I played with it in photoshop later.