Inverted Prayer Curl
 Marco's Explanation
Butterfly the ball to the outside then stop when the ball is in your palm. With a graceful movement, bring your right hand under the left hand. Your right hand must be palm down. You must be in a position where the left hand is holding the ball in the palm while the right hand is underneath, palm down, both back of hands touching each other. So are the wrists in fact.
Your right arm should have crossed in front of the left (ie: the left wrist is closer to you). Bring both hands toward the center of your body while turning the left hand horizontally so it's pointing toward the right side now. The hand position hasn't changed. You should end up with: left hand holding the ball in the palm, fingers pointing to the right side. Right hand, palm down, under the left hand, fingers pointing to the left.
While keeping both back of the hand touching each other, continue the turning movement of the left hand (of step 2) so both hands are now pointing downward. You'll have to make the right hand turn a bit too to get into the position. You will need to grab the ball at that point or your feet gonna hurt for a while. Both wrist touch, just like the back of the hands.
Finish the turning move so you now have the right hand palm up and the left hand (still holding the ball) palm down. (mirror image of end of step 2 but the hands have switched position). Continue the turning movement in the same direction while bringing both hands toward the left side of the body. If you do it well, you should end up like the end of step 1 BUT with your right hand now closer to you than your left (the crossing of the hands has been inverted by the "curly bits").
The ball hasn't switched hands during the whole move. From there, do a "backward prayer" toward the right side and tada!!... You're in position to start again from the right.