Penny Copper Atlantis

Take Penny Copper and imagine it left outside for a few decades. That’s close to what this sheet looks like, with teal and verdigris patches breaking across the copper base and each round carrying its own patch of blue-green rather than a uniform coating.

Splashbacks that want something less predictable than plain metal tend to land on this one, used as mosaic kitchen tiles behind a stove or sink. The same patina works as mosaic wall tiles behind open shelving, where a plain wall in your kitchen usually goes unnoticed.