David Combs wrote:

Thanks for the various advices!

Here's what I finally did:

Went to radio shack, got a reel of 24-guage *un*-insulated
wire (ie, bare wire), nice and thin, and wrapped it around
the grippers, just behind the shoved-up-hard thingie
that makes the gripper grip (each) the arm of the glasses.

Works fine!

Thanks,

David
why not get some duct tape and wrap it around the arms of the glasses
and then around your head.. if it then falls off then something is
wrong...