How's this for an unusual concept? Brad Gressel created Stix glasses which double as chopsticks and a hair pin. Well, not really. The stainless-steel chopsticks/hair pins are tucked inside the two arms of the glasses.
I think this is a funny idea. As someone who wears glasses I know just how sweaty the arms of glasses can get in hot and humid weather. Of course, Brad Gressel's Stix are tucked away, but I still don't like the idea of putting those in my mouth. Frankly, I think its kind of gross!