I've covered how to make French or kidney style ear wires before. This style of ear wires has a secure catch which reduces the chances of losing the earrings. But I also love Robin Atkin's ear wire tutorial over on her blog Beadlust. It is a clever way of showing off lampwork beads or other kinds of beautiful beads. The wire loop at the back doubles up as the catch.
One suggestion is to actually apply a little glue to keep the beads on the wire. Just in case the back loop opens accidentally. Nobody wants to lose beads!