Upcycle CDs- build an eco-friendly & wallet-friendly roof!
Put in one place all those old, damaged CDs. Count them. Compare that number with the number on this page. If you haven't got enough CDs - ask a friend, or wait and be patient! If you have enough CDs start making your new roof! You can do it with your neighbours and help somebody who can't afford roof fixing.
Extra tip: beside CDs you can also use vinyl records, as shown here: