Jonas Samson, an interior designer from the Netherlands has created a new kind of wallpaper that is also a light source. The paper has a light emitting layer within that accomodates LED's. The product, which appears to not yet be for sale is touted as being "green". This is due to the efficiency of the LED lighting. I cannot find pricing, but word is extremely expensive - so in my mind that's not necessarily green. Nevertheless this is an interesting idea with lots of possibilities.