Does anyone know of a place that can make and fit custom side mirrors?
I'm talking about just the glass mirror bit.. Not the entire assembly.

The passenger side mirror on my 02 Cobra is very heavily magnified So it's just about useless compared to every other car I've driven.

most glaziers can cut mirror glass for u, cost around $20 and upwards. just silicon it over the top.
some of the better ones will be able to remove the mirror glass and recut another and refit to your backing too, but cost more