TricksWithHats
Back tumble - Tumble the hat down your back and then up again.
Put the hat towards the back of your head. If you throw the head back you should be able to hit the brim with the back of the neck and have it roll down the back. As the hat rolls bend forwards from the waist to slow it down. Catch it in a inside grip with both hands.
Hold the hat still but move your hands so that they are at the front of the brim. Flick the hat so it rolls up the back. As you feel it on the shoulders put the head back to catch it.
Getting the timing right takes a lot of practice...be warned, this trick is difficult.
From the TricksWithHats archive