A Suggestion on how to allow Head Gear and Glasses
I've seen item-modders do this and thought it was a good idea that the dev team could try out: Put glasses in the Earring Slot.
What item-modders have been doing is replacing the model of earrings with glasses models (some in-game, some from other sources).
The only two cruxes to this would be:
1) They would either have to make these earring-glasses dyeable OR make multiple versions in different colors, like how they do with the flower items. I personally prefer the former to the later.
2) People wouldn't be able to equip glasses and earrings then if they're in the same slot (unless the item has both).