Trading Paint

Can we please have a way to trade off pots of unwanted paint that our retainers bring to us for colours we actually want or need?
If there was an NPC somewhere who would allow me to trade unwanted pots of gold for another colour, that would be awesome.
Even if it's only the gold ones...

It would even be fairly easy to implement in the near future: When the Manderville Gold Saucer opens.

I imagine that would need a large quantity of gold paint to keep it nice and shiny?

How about putting an NPC somewhere in a back corner who would gladly re-stock his quickly dwindling gold paints for any other colour, so he can keep the place nice and shiny?
Trade in 2 pots of gold for 1 pot of silver, or white, or black, or pastel...

It would sure beat threathening my FC with painting our entire mansion gold from op to bottom...

I agree my retainer keeps bringing me gold paint, but i don't want to paint anything gold. It would be nice if I could trade or sell them on the MB for colors I actually want.