Metal baking dish from a Turkish supermarket as a tray
I saw these "trays" with friends in Karlsruhe. I found them extremely handy because they have a high edge where nothing can slip. And besides, they look classy, shiny silver.
I would never have come up with the idea that the tray is a misused baking and casserole dish from the Turkish supermarket. I immediately bought one, for about 7 euros. There are these bakeware made of metal in several sizes to buy.
Of course, they are also great if you want to make a cake or a vegetable casserole for many people.
My tray has a diameter of about 40 cm and the edge is almost 5 cm high.