This isn't really my style, but: If you move that dangly bit from the right to the left, AND maybe make the silver insert part slightly raised, and a FREAKIN' KEYCAP with a middle-switch and 2u stabilizer mount? It could be a cool stealth macro key. And being on the left side of the board, I don't think it would be too easy to accidentally hit.
Just an idea to give some functionality to the little bulge.