So here you have your shirtless Kakashi-sensei. Since so many people asked me to draw one, I did. And plus, he has no mask and you can see his sharingan! :O Just plying around with graphite pen - I haven't drawn a proper picture with only graphite pen for a long, long time. I personally like it, even though the background is a little bit sketchy.
Hatake Kakashi is (c) Kishimoto Masashi