We finished it up over the break. Each girl got two 10x10 canvases and one 16x20 canvas, and I provided them with paint colors that matched their bedspreads. They could paint whatever they wanted, but only with the colors provided.
They're now hung up in their room, and the girls seem rather proud of their art. I think it means more to them than something I could have bought at the store or even painted myself.