Printing with Colorfabb Bronze-Fill
Recently, colorfabb introduced a new, bronze infused PLA. I immediately thought this would be a lot like cold casting, which is the process of mixing metal powder with clear resins.
When the print comes off the printer, it's dull, the metallic properties only become obvious once you buff it back, for this, I just use steel wool.
Bronze-fill also patinates like real, foundry cast bronze, so you can use all the chemical patinas you would use traditionally. Sculpt Nouveau have a great range.