Recycled Tree: Ornaments and Garland
Two circles fit snugly together to form one ornament. To make, cut two disks identical in size from a card; you can use a circle punch, or trace a round object and cut with scissors. Cut a slit halfway across each disk. In one circle, punch a hole near the edge opposite the cut with a hole punch. Hold the disks so that the slits face each other. Slide the slit of one disk all the way into the other (you should feel the disks "lock"). Thread string through the hole, and tie a knot. Make a garland by using disks popped out of cards with a circle punch (you can also trace a round object and cut out). They're attached to heavy thread with stickers; to make sure they're secure, rub with a craft stick.
