Take a light, natural fruit, the calabash, grown on a vine, seen with a fresh eye, handcraft it into a lampshade.
Calabash is a lightweight fruit, most commonly found in hot, tropical countries. These organic cells come in a variety of different shapes and they dry in the sun for 3 months before I get my hands on them.
Plug it in, switch it on! Whether it hangs daringly from the ceiling or sits idly gazing from the bookshelf, it'll shed light wherever you want it!