This is a hack I developed during Nhacks 2016. It turns your hand into a mouse using the leap motion.
Moving the mouse - Index Finger.
Single Click - Infront of the leap motion, tap thumb and index finger together.
Double Click - Behind the leap motion, tap thumb and index finger together.
Drag Mouse - Fist and move however you like. To get out of a drag, you can just release your fist.
Scroll Up - Motion your hand downwards with palm facing down.
Scroll Down - Motion your hand upward with palm facing down.
Zoom in - Create a circular loop clockwise.
Zoom out - Create a circular loop counter-clockwise.