Here is my first excersice. I decided to treat the ball as more of a character than a ball, so I exaggerated his(her) movements a bit and used a bit of follow through. I hope it turned out alright. I've been staring at it for hours, so I can't tell anymore.
Oh yeah, I almost forget. I cheated and used a vertical motion path so the only 2 parameters I had to worry about keyframing was the path ease and the squetch pose.