OK, I lived with a nice Uncle, an amazing person, Coal miner in Southern Illinois. He taught me to make stuff and sell to friends:
Slingshots, from bushes, red rubber tire tubes from discards at the gas station, only one in town. (10 cents)
Stilts made from scrap lumber (15 cents)
Drag old bedsprings and steel from the junkyard over to an abandoned coal mine, drag the timbers over and push the steel into the hole, lay down at the edge and listen to it splash in the water at the bottom. Got some adults a bit upset at me for that.
Got 5 cents a person to take them down to a secret swampy lake to see my dad's battleship, whoops it is not here today.
Play marbles and fill cloth sugar bags with marbles to shoot in my slingshot.
Find and collect empty milk and RC cola bottles to get the refund. bbbbbb