A while ago I came across this little booklet. I managed to buy two online. One as a present, the other one for me. I wanted to make a trial version, making it half the size of the discription. Not smart, I discovered, because it makes folding more difficult. But by then I had spent so much time drawing lines and folding that I won't give up. Although I'm not sure whether the result will be good. Want to try too? Here's a pdf-download for a mini-diy-paper-lamp. Start with the vertical folds.