hexagonic
I've been working on collisions (as I like to call them) for about three years now. In essence it's when two (or more) balls hit each other. I've also been playing around with taps (where you tap the ball(s) with your hand); this video has most of the three ball tricks I've learnt.
Filmed on Crosby Beach, near Liverpool in September 2014.
Music is "Trick" by The Rainstick Orchestra