Bronze backsplash behind stove
Just get a stainless steel sheet and run over it with a propane torch.  It will oxidize the steel and you can get a variety of colors.  Lighter temps give yellows, golds, bronze going to purple and blue as the heat is higher.
Once you get what you want you will need to put Urethane or something tough over it because the oxide layer is thin and can scratch off.  If you make a mistake you can steel wool it off and try again.