The Bounce Drill
One of my favorite hitting drills because it teaches 3 things: Hand eye coordination, Slows a hitters body down, and teaches a hitter to stay back by letting the ball come to them.
How to: Have a partner bounce the ball in between 7 to 20 feet away. After bounce, hitter will hit ball.
Simple drill to perform for youth baseball players. Plus, they have a lot of fun when doing it.