With the Kinect 2 coming out, that means I can finally afford some sort of 3D scanner.
I loaded up Skanect since they have a free trial version and I held up the Kinect and had my son sit like a statue as I walked around him.
Then I got a rotating chair at a second hand store, and tried to rotate myself around while the Kinect was propped stationary and pointed at me.
more robust solution is called for.
More as I get more time to experiment.