The easiest thing to practice--that won't ever get boring--is to practice throwing and catching. All you need is an outside wall. If you're working indoors, make sure you're using a pinkie (or spongy ball).
Wall Ball Drills (2) |
Wall Ball (w/Paul Rabil--skip to 1:25) |
Girls' Catch & Throw for Beginners |
Rebounder Wall Ball Drills |