Foam risers allow you to elevate an inexpensive plastic drip pan & illuminate it from below. By elevating the drip pan you can place a wide variety of lights under your ice carving. Try putting the foam under the tablecloth & the light on top of the cloth.
Use 1 riser with 18″ x 24″ pans
Use 2 risers with 21″ x 27″ pans
Use 2 risers with 11″ x 41″ pans
Use 3 risers with 21″ x 41″ pans