Would anyone be interested in a color commission?

I'm not ready to take one, as of right now, but I've been tempted to offer a sale for coloring a piece.

BUT, I'm not at all sure how to do this. Does it necessarily have to be for the linework AND color, or do sales for just coloring work?
On top of that, coloring is just about the most fun thing to do with an artwork. Would anyone want to give that up for pay?

Just a thought since most everyone seems to point out my coloring over my linework. It'd be pretty interesting if there's a market for this. (And maybe I should do a separate priceline for Background, Character, and Color. Mercy, I make things so much harder for myself. *facepalm*)