More to explore:
StoneGable: HOW TO AGE GALVANIZED METAL
StoneGable: HOW TO AGE A GALVANIZED METAL
A one-step, easy way to age new galvanized metal. Great results. stonegableblog.com
HOW TO AGE A GALVANIZED METAL
How to Age Galvanized Metal and Build Your Own Industrial Table
Galvanized metal reacts to vinegar and an oxidization process starts.
Do It Yourself Just Like That: how to galvanize metal
tin heart galvanized metal
Aging Galvanized Metal :: Hometalk
DIY Inspiration - Galvanized metal cans, spray painted in shades of green to hide dog food, laundry, etc..
Outside shower...Mamaw had one...