Recycle Old Lightbulbs Into Salt and Pepper Shakers
by Lloyd Alter, Toronto 
on 07.31.07
Readymade has instructions for converting old incandescent bulbs into salt and pepper shakers using old bottle caps and a little wax. I am not at all certain about this; there used to be phosphors in those bulbs and the filament was surely slowly depositing something on it while it burned, but for those willing to risk it, it is another good way to keep yourself busy and keep your lightbulbs out of the garbage. We should probably all start hoarding our incandescents; they may be worth something at the antique shows in a few years. ::Readymade
And, if you liked that project, our patners in the Go Green competition at Instructibles will show you how to turn a bulb into a flower vase, probably a healthier project. ::Instructibles
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There's no phosphors in an incandescent light bulb. Please do your research before making those claims.
The white "stuff" on the inside of an incandescent light bulb is kaolin clay, a totally harmless and sterile substance.
How do they make the bulb sit upright?
LA: in the instructions there was a big steel nut that was waxed into the bottom of the bulb.
Sweet!
I wish there were more in-depth instruction on the Lightbulb salt shakers.
Also, one little thing. It's Instructables. Just me being nitpicky.