https://metalrecipes.com/vesels/
My vessels are all hand hammered from copper using a method to move metal called raising. Raising uses special designed hammers and stakes (a special shape of hard steel or wood) to create the vessels. Some vessels are embellished using the chasing technique which, small special shaped chisels move the metal. A patina is used to give color to the vessels. Here is tutorial I made for use in classes and can explain some of the process. The Raising of Metal