These are a couple of cool looking faces from the pages of my sketchbook.
The girl was drawn with some slightly worn out copic brush pens and multiliners. I used a red pencil to do my construction lines. I really like the Copic pens. They are probably the best I've used for inking stuff. I use them to draw installments of The Daily Doodle.
This creepy looking fella was drawn with a Sharpie pens. It's a nice pen. It works okay for sketching. I wouldn't recommend it for any finished work. The ink doesn't really flow real well and you can't do quick strokes otherwise the lines will come out too light. Excellent for writing with though!