I tried to create glasses for our new years party. Most of the models I found didn't worked well without a screw for the mechanism.
So in my model the mechanism is sticked to the temples.
Attention: You need to do a little crack after releasing the parts from the plate to enable mobility.
Edit: Added a new cover with glasses created on a PET-plate in Iridium Gold Metallic (13400) from Bambu Lab.