Great project Trev, wish my Dad made stuff like that for me when I was 2....Some really very nice ideas on this thread. So often Dads ignore their sons so its nice to do stuff together, if they dont learn from us, they'll earn off someone else and that often turns out for the worst....Who says they have to be a zombie in front of a commputer game or you need to spend 100's of pounds on things to pacify them?
What about a miniature canvas bucket? I made my son some small wooden wedges and a miniature wooden maul for log splitting, if nothing else we had a lot of fun and he developed a bit of coordination, strength, responsible behaviour etc. Its astonishing, now he knows exactly where to place a full metal wedge...
cheers Jonathan