Harriete Estel Berman is the greenest Judaica artist that I am aware of. She creates wonderful pieces of art from various found objects and recycled pieces. Here are candlesticks and a mezuzah which are made from recycyled preprinted tin containers.
From her website: Making Judaica has been my means of personal observance and interpretation. The construction of a work of art from recycled tin cans and steel dollhouses reinstates value in once-used and discarded material. As both a manifestation of our contemporary culture and a reflection of our past, the images evoke familiar memories imparting context and values outside of precious metals. Like touching heirlooms or viewing old photos, observance and tradition echo meaning in contemporary Judaica. Touch this connection to our history and we renew hope for the future.