22. Copper cooking utensils
The copper cookware is fantastic, and professional chefs around the world use it. They conduct heat very well and spread evenly throughout the pan.
Even when a copper pot gets dirty, it can often be polished. Just be careful of the inside worn off. It is toxic to cook with real copper, so you need an inner liner. This can be fixed, and some might think it's worth the trouble for expensive French cookware. But keep that in mind when you want to use or sell it.