Ball jars for sale everywhere...
...made by Jarden. In supermarkets, walmart, hardware stores, maybe even drugstores, I'll have to check. People can reuse the jars but they do have to buy new lids constantly. Seems like everybody's canning these days. Should be one business that picks up in a recession. Maybe right now is not the time to buy any stock but if there's another market panic, that would be a good time to get hold of some Jarden.