1. Collect papers, pages from old books, and maps (find great examples at touchofeurope.net). Cut them into 1- and 3-inch rounds with craft punches. To make the chain, put a piece of double-sided tape on the back of one circle, press white twine onto the tape, and then place a same-size circle (with another strip of tape) over the first.
2. Repeat along the length of the twine, mixing up the sizes as you go.