I've already tried asking /asp/ but it's a slow board and I've waited 3 days.

Any of you guys have any experience training with a medicine ball for power gains?

I'm an amateur boxer but on top of bills food etcetc I can't afford to join a gym too, so I'm thinking about training using solely bodyweight and a medicine ball.
I've been doing all the usual, push ups, pull ups, squats, planks, all with a weighted vest on, and I just bought myself a medicine ball to throw around.

Apart from the obvious throwing it at the ground, at a wall, and in the sky, do any of you know any other power exercises it can be used for?