Scientific housekeeping, with its standards of spotlessness and shininess, was founded on no less a fudge than the forty-seven and a half tons of pigiron.
According to a recent Greenpeace study, illegal wood charcoal is primarily used in Brazil to power smelters producing pigiron, which is used to make steel for industries including U.S. auto manufacturing.
These do not quite fall into the category of entertainment, but they too depend more on human talent and ingenuity than on pigiron, steel mills or production lines and the Midwest has a good supply of them.