For this one i used blurry reflections. Remember AgentSmith, you could use this method in the vase scene and still get the sharp reflections. Make the specular halo value almost black for the vase material. This will tell the render engine to blur the relfections almost none for that vase. For the above example, the specular halo valuse of the mirrored ball was made to be almost black so it wouldn;t be blurred.