Find faces. Combine eyes and mouthes in your imagination. Enjoy benefits of replacing one eye with another or mouth to another mouth. Go beyond it - use empty spaces - white areas - as mouthes or eyes. Combine both - readable objects with random empty areas. Go even furher - find face pattern by chosing any area / part in visible material, add necesary detail (eye, mouth, hair, nose etc) that is available. You will see faces. As You Wish.