Luke’s Eye in Onyx is made of 1600 translucent Honey Onyx stone tiles, which form the image of my son’s eye when back-lit. When displayed in a window, it is visible during the day from the inside and visible at night only from the outside when an interior light is on. At night, without the back-lighting, it becomes invisible and goes to sleep, unlike my now teenage son. Here’s looking at you kid!