Matching Centercaps to rims

[Polyal]

I promise this thread isn't as boring as the title suggests.

Next week I am sending my rims off to get polish (below).



Now, Ive been wanting to do this for ages but before I go through with it I need to know how I can get my plastic center caps to match the new polished look.(below)



Any ideas? The only thing I can come up with at the moment would be trying to find some metal (maybe chrome) spray paint and doing that. But that doesn't make me feel very confident that it will match.

Perhaps custom caps? But then I would imagine that a place would charge a crazy amount to make them. As you can see, they are not your ordinary plain circle.

So if anyone has any ideas, fire away!

Thanks. :eclipsee_