My first born turned 7 a couple of weeks ago, and to celebrate that big year, I built him a nice beginners tool box. It's constructed of Cabinet grade Maple plywood for the carcass, Sapele for the handle and top edges of the box, and White Oak for the pegs that secure the handle in place. Pretty simple construction all around. I used 1 1/2" copper rim shank nails to help hold everything tight. Turned out pretty nice I think. The look on his face when he saw it was priceless!