Sometimes you really need to sharpen a knife. But what if all you have on hand is a burned out high pressure sodium light bulb and desperation? You're in luck! The bulb's quartz core can be used to sharpen knives, tools, and your reputation as a genius. If you've got a couple basic tools and a dowel, you can upgrade that quartz to a nice sharpener that's also a great conversation starter.
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I am a maker. As founder of MakerBlog, I enjoy sharing ingenious creations with others! I also enjoy the random and unique!