juggling.tv

Start with plate flat on your right hand. Swing it in a full anti-clockwise circle, twisting your wrist over at the top so the plate finishes back in its original position with your shoulder and wrist twisted to support it. Reverse the move to unkink your arm.

It's also possible to stop the plate at the top of the circle and bring it back down the way it came.
From the TricksWithHats archive