The Bike Peddler Take a Look mirror can be mounted on the helmet! When I had a visor I attached the mirror to it. With my new road helmet, I used some zip ties to attach it, because I didn't want to order and wait for the special adapter to some in the mail.
I mounted it on my glasses 2 or 3 times, but I couldn't stand it there. The glasses' frame always seemed to be in the way.
