None of the drills shown below are perfect, but are basic drills you can use to start building your T-Baller's skills.
"Scoop, Load and Fire" Fielding and Throwing:
Holding the Bat:
Squash The Bug Batting Drill (Not everyone agrees with this idea, but it is an easy way for kids to remember basically how they should twist their body. The twisting of the back foot is really to help the player twist their hips.)
Catching Drill: (As a coach or parent, teaching a 4 or 5 year old to catch will possibly be the hardest thing you do in baseball. Try this drill, and try to do it everyday. It doesn't have to be for long, but as often as possible.)