I've been restoring my grandfather's copper hammers and mallets. Left is what they all looked like before I started. Not finished yet but they're not looking too bad for 70-year-old tools. :
Dropforge Cast Iron Meat Tenderizer – Great Deals Webstore
BERYLCO BALL PEIN HAMMER H 54 A Beryllium Copper Spark Proof Non-Magnetic | #1852458272