A black surface that is polished to be very flat, would not work.
Behind him lies the still, black surface of the water.
The Shadow was only a foot or so above the black surface of the river.
One small red light lit up on the Thing's black surface.
The black surface of the lake began just then to grow still.
One entire wall of the room was taken up by a smooth black surface.
Then he looked down at the smooth black surface of the water.
She slammed the side of her fist into the black surface.
He hit the black surface, square at the center, just as he'd clearly intended.
She looked out over the black surface of a pond, head up, body still.