Prism Patches "Prism Pyramids" are a popular home décor accessory that have a wide ranging appeal to all ages and genders.  An elegant touch of interest to perch upon a window sill, desk or accent table.  All are delighted when a ray of sunlight touches the surface and cast a multitude of rainbow prisms within a room. With several crystal designs to choose from, I'm sure you will find one that fits the room or occasion you are shopping for.