Firstly a boy needs a dog. It should be of an indistinguishable breed; but with a good percentage of Terrier.
A boy also needs a bike. This should possess all sorts of gadgets that do nothing, but look good. The more gadgets the better. No mudguards, of course.
What boy could exist without a fishing rod. Going fishing is an essential part of every boy's education; far more important than maths or history. (above is my grandson Finn)
A boy also needs a father who can bowl (as in Cricket). A non-bowling father, frankly, is totally useless.
He also needs a secret box, where he keep his Opinel, bits of string, semi-nude pictures of Kylie Minogue, animal skeletons, and dried frogs (this is Harvey J's box above).
He needs gumboots, plenty of old clothes, and (preferably) a Chelsea football shirt.
That's it really. Give him something to eat occasionally, and a flask of squash, and he'll grow-up all by himself.