I've just added "HeadgearGlasses" to the HeroMachine 3 Alpha. Here's a quick snapshot of some of the new items:
I tried to make all of the lenses "color2" without a color1 underneath them so you can get semi-transparent effects. I also set the pattern areay to be just the lenses, since the frames for most of them are so tiny.
Let me know if you wanted a specific style of glasses that didn't make it, and I'll see what I can do.
Also, let me know what you want me to work on next. Barring any clear consensus otherwise, I'll probably either do Neckwear next (either as a stand-alone slot or as a set under Tops) or some additional "Item" sets like polearms, bows, etc.