Sunglasses

I need some new glasses, and with the weather changing could do with some with interchangeable lenses.

However, with my beard conventional cycling glasses make me look like a skinny Dog The Bounty Hunter, what with their aggressive bridge arch and all that. I can't bring myself to wear them, I feel like a total plum, even if most people think I already look like one in my lycra.

Can't seem to find anything out there in any other style however that have interchangeable lenses. Does anyone else know of anything?

Thanks!