DIY: Mod podge a map to a lampshade.I really like the many suggestions for recycling old maps and atlases. You could even concentrate your shade on specific locations that someone likes to personalize the shade for them.
I really like this idea for an office or a library. Convert an old globe into a pendant light! Seems easy enough. Buy a lamp kit at your local hardware store, take apart a globe and drill a larger hole for the light. Put remainder of light together.