How is this for unorthodox?

The ball is resting a few inches from a tree not far off the green, and the pin ball and tree are all in a line. Hence, absolutely no back swing (either RH or LH sorry greg).

This is my solution:
Choose a mid-low iron (7i, 8i, 9i depending on what else is between the ball and green).
Ground the clubhead about 2-3 inches behind the ball.
Press down on the club so that the shaft bends.
Power the club all the way up through to the top of the follow through.
You should be able to get about 10-20 yds - depending on you club selection and power.