Anyone found any tasteful aftermarket products? Particularly any that can match a vehicle's color?

Even if the color matches, they will be quite visible.
Why do you want them?

If I couldn't find something in a Burberry check pattern I was wondering if anyone has used these:
https://www.3m.com/3M/en_US/p/d/b40066725/

These were installed on my Sclass when I bought it 3 years ago. Works great, hardly visible, has protected the door paint nicely, particlularly the large rear doors.

My 2007 SL has clear edge guards. Look so good I thought they were factory installed !

Why not have a vinyl wrap with clear paint protective film? They could wrap the entire door or just a thin edge strip. The line from the vinyl wrap edge is hardly noticeable. Good luck!