For this project I bought some waxed cotton, charms, beads, lobster claw clasps, closed jump rings (I'm afraid open ones will open) and crimps with the largest hole I could find. The crimps I bought also made nice beads.
I started by putting my jump ring on and securing it with a crimp. That wasn't easy. I had to figure out a way to get the cotton back through the crimp.
You can string your beads and charms now but do yourself a favor and double check it before you fasten the clasp!