.... collection of helmet mounted mirrors? They all seem to break off, fall off when I store the helmet, put it in the Wald basket ... I like the concept, it works well for me. I tried the glasses mounted mirror once. Even with the lightest and Corkies I was constantly adjusting my glasses.
Bell has a new commuter helmet with the mirror actually built and front and rear lights. My head is Giro shaped, I don't have a Bell head but I just might try it. They don't show the mirror in this clip but here it is:
http://www.youtube.com/watch?v=FQ85jyNKYew