Here is a guy doing the flip throw-in and getting 50-60 yards distance:
http://www.youtube.com/watch?v=AryIzGfOWIU&mode=related&search=

Here is a U9 (!) girl doing the same move:
http://www.youtube.com/watch?v=SOmwNYa546g

A pro player doing it a little different, keeping the ball in his hands the whole time. This is better for the element of surprise:
http://www.youtube.com/watch?v=eGZeXkbnfSs&mode=related&search=

The seal dribble, perfected by Brazilian U20 phenom Kerlon:
http://www.youtube.com/watch?v=v9shQBBXd4A