Aftermarket alloy oil cap

Hi. Has anyone replaced the standard oil cap with an aftermarket one? I saw a forge one on a clio 200t but forge say the ones they sell won’t fit.
may plastic one is temperamental from where the garage did the service but fancy something nicer than yellow plastic.
thanks in advance.
I’ve had confirmation back that the forge cap does fit the clio along with the megane rs280 etc. Interesting.