Marmol Radziner is a Los Angeles-based design/build architecture firm, and they’ve taken a unique approach to leftover building materials — rather than get rid of them or even reuse them for other designs, they’re turning them into jewelry. They’ve created a line of accessories featuring bracelets and rings made of bronze for men and women, and according to the website: “The patina of every piece will evolve over time in response to the wearer and no two finishes will ever start or stay the same.”