The Elizabethan eco-collar is a contemporary piece of environmentally-friendly jewellery inspired by 16th century Elizabethan muslin collars. The eco-collar celebrates colour and the re-use of materials. It consists of two repeating anti-clastically raised elements made of salvaged scraps of copper and brass. Unlike its white, 16th century cousin, the eco-collar is multi-hued with patinas produced by common, environmentally-benign substances from the kitchen, backyard and grocery store (e.g. soy sauce, red onion, cabbage, horseradish, vinegar, etc.). When copper and brass are exposed to these substances for days or weeks, their “true” colours emerge. The Elizabetan eco-collar is the latest addition to the Patina Project.