Kettlebell juggling is probably the most fun fat loss workout you will ever do. Kettlebll juggling will increase your grip, back, abdominal and hamstring strength as well improve your conditioning, all while just playing around! Don't be intimidated by it either, once you have spent some time learning kettlebell swings, cleans and snatches, you are ready to start juggling. I will say this though, use a lighter kettlebell than normal as a falling bell is heavier than one already in your hand!
There are no rules or templates for kettlebell juggling, just experiment and play trying different tricks. The goal is to keep the kettlebell moving while keeping yourself amused. Don't be surprised if you almost pass out due to fatigue either! You will be so focused on not dropping the kettlebell that you will not notice the systemic fatigue raising in your body.
Check out this video below for a great example of Russian Kettlebell Juggling, then try it yourself!