[Rootabager]

I like the one where you pick it up over your head then throw it down as hard as you can, pick it up and repeat.

Also using a push press type motion throwing it up as high as you can then catching it and giving into like a squat postion then exploding back up again.
(does that make sense)- sorta like a squat press with throwing the ball at the end.

There is alot of ab stuff- twist, jackknifes, sit ups.