Japanese firm Great Mushrooming created these wonderful mushroom lamps. Made of glass, LED lights and waste wood, the Mushroom Lamps are artistic and beautiful. These innovative lamps were on display at Design Festa 2010 in Tokyo. The lamp comes with mechanical, non-fungi on/off switch. Sadly the lamps are currently not on sale outside of Japan. Check out the website of Great Mushrooming for more details (In Japanese).
Check all the lamps here.