I did a two bight turks head wrap on my Streamlight Stylus Pro. This is the best $20 bucks I ever spent. A 25 lumens light in a small every day carry flashlight. And after the turkshead wrap it sits perfect in my pocket.
Stormdrane's video tutorial. It is the easiest tutorial I have seen for turks heads. He also has tutorials on other knots. Check out his blog to see his projects and tutorials.