a pair of earring findings
2 matching key rings (any size you want)
2 (separate) small amounts of size 10 crochet thread
size 7 (1.65mm) crochet hook
Round 1: With both strands held together, sc completely around the key ring.
Sl st to beginning sc.
Fasten off and weave in ends as best as you can.
Attach earring findings.
For a different look, hook 2 or more smaller key rings together before crocheting to create a "linked" effect.