On 7 Feb 2011 22:30:55 GMT, ddl@danlan.*com (Dan Lanciani) wrote:

Try a marine store. They have such rings in various sizes to secure pins.
As a bonus the material will probably be highly corrosion resistant.

Dan Lanciani

Here is another alternative:

pic:

http://www.broderick.com/c/cj_JT431_Key_Ring_screw_off_ball_end_Sterling_Silv er_broderick_.jpg

Fancy. Just un-screw the ball.

It also works as a fake nose ring.