Did you know james_rocks89's Glasses Sliders? What an idea!! I never knew that, till I see HP's great "Doctor Who" today (Thanks for using my glasses).
And so coincidence. Right now I was modding my "Wayfarer Glasses" and creating new shape, just like transform by using those sliders. I wanted to know those much earlier! Well, I'll finish this glasses, anyway. It's fun to make an eyeglasses.