Mount
I'm thinking I can learn a lot from clip on sunglasses.
- These grip using silicone and spring, and flip up easily too. https://www.temu.com/sunglasses-clips-unisex-ultralight-driving-special-sunglasses-polarized-lens-clip-on-myopia-glasses-dual-use-silicone-leather-case-g-601099516297597.html
- How much alignment grip does it have though?
Another alternative are horizontal clip ons. Other than feeling less sturdy, they seem better to get aligned. Might not work as well on plastic thick frames though.