With certain objects we use metal for functionality, additional strength and stability.
Often as a detail we use metal globes that are coated in galvanic effects of old copper, chrome, gold, etc. Like for coat stands. Wooden hangers are attached to the body made from steel bars. Metal base and body provide stability.
Mirrors are designed from two stylized elements of wood that hold the mirror on top & bottom. This elements have a narrow slot, just enough to fit the mirror. They are attached to the wall with metal balls that have welded screws.