The challenge was given by American Craft Council . Make something out of old Dewey Decimal cards from their library. I had to do it with just 25 cards. Challenge accepted! 
I chose to use the cards as movable blinds. to hold the cards, I riveted small clamps onto a piece from an old recessed lighting system. My concept was to make a library lamp using inspiration from a lava lamp and deco design.
The top cone is rounded with a strip of hanging strings used to diffuse the bulb. This lamp makes a gorgeous pattern of light on the surrounding area. The entire piece is made from recycled parts.
I have to admit, this was a difficult challenge. I was only given 25 of the cards and I had to come up with a good way of showcasing them.
I really didn't want to use old ideas, I wanted to make something completely different. I hit a garage sale in my neighborhood that had four of those graters and that middle stainless piece. The idea had wings from there. I
I also lucked out in a shop on Congress St. that had the printing blocks that spell craft. And in the right font!
It's been a long time since you last saw a Dewey Decimal card, so here's one of the cards up close.
Click on any of the images to see a large picture.
The pieces are held together with a lab stand and clamp rings.
And here is what it looks like in my television room. I can always tell when I've made a really great lamp by how easy it is to take a photograph of it. The lamps I consider to be a success are the ones that I can photograph using only the light from the lamp, the quality of lighting from this lamp is astonishing.