I have been working on a new rimless frame design - with no washers, nuts, glue or rivets. For now it is in TR90, so a little bit like 2.5 eyephoric in terms of material and category. I think an advantage is that nothing protrudes through the front surface of the lens (thus a bit easier to clean) and there is nothing to cut (screws, rivets etc...). Super easy to mount and reglaze when neeeded. Very low profile, minimalist sort of design. I would like to know whether you think there is still market interest for such a thing, and any thoughts you might share. Thanks.