I was hoping I could set up a wine-refilling stand at a market of mine, so people can trade in an empty wineglass to buy a full wineglass from the stand at their leisure as they'd port in or otherwise travel. But although I can sell wineglasses, I can't select them (empty or not) as a potential payment item.
So I suggest making wineglasses selectable as a trade object, and perhaps do the same for similar utensil objects as well? It would be a way to provide some simple amenities at a public commercial site without having to give people theft and trespass permissions.