This is amazing!!
Fairy Forest - Heathrow Furniture Set
The reason why this is amazing is because there are 3. THREE. THREE!!!!! recolour groups for one object.
What she's done is have the deco balls as a separate slaved object that is placed when the chair is placed. So clicking on the chair recolours the frame and seat, clicking on the deco balls, recolours the balls.
I'm having a nerdgasm here.