Made out of the unused material from skateboard decks created during the manufacturing process. Grove SkateBacks ($50) are ready to add some personality to the rear of your iPhone.

Available in three colorways — vibrant, calm, and the nearly-boring neutral — these protective backs are made from 100% post-industrial skate board material, and attach to your iPhone 4 or 4S via a peel-and-stick 3M adhesive that promises to allow for residue-free removal — an important detail if you plan on ditching your handset for a shiny new iPhone this fall.

They’re a collaboration between Grove and Maple XO, and they double as an attempt to limit the waste produced from building about 4,000 skateboards each week.

Check out all 3 options at the Grove website.