Cds Sm Great use for all those old CDs laying around, make a lamp! At a previous job, the head of QA had several stacks of several hundred CDs on the floor in front of floor to ceiling windows. The sunlight shining through the window would glow through these CDs in a very appealing manner that made the green light seam warm. From that point forward I always thought that a stack of CDs with a tubular light inside would make a very cool lamp. [via] Link.