My latest art project is a fish, about 20 inches long, made with wire. The technique I am using is twisting and turning the wire, free form. The overall look is a mesh, but a pretty stiff one, so that the fish can stand by itself on a display.
At this stage I am about to finish the body. I am using steel wire from the hardware store, it is harder than the artistic wire from the craft store, which is usually soft copper.