"The “Glowing Light Ball Bench” created by Manfred Kielnhofer was present at the Light Art Biennial Austria. The bench which has a very simple design consists of three light balls and two wooden board perforates that lay over the light balls."
It's an interesting design although I would like to see if it works as well during the day. I would also worry about the wood planks standing up to changing weather. They seem pretty thin from the couple images that were shared with us. Still, a fun project.