This place has some, depending on your ring size :
https://bbgbashguard.com/

I searched for "alloy bash guards silver" - You're more likely to find aluminum guards, rather than chrome steel.
OTOH, if I were you, I might find a color anodized one that I really liked,
strip the anodizing with oven cleaner (online tutorials on it), and then polish.
But then I'm different, that way...........