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via Lifehacker http://ift.tt/1H9zlTY

The best earbuds offer some noise isolation, but if the ones you have are awful or keep falling out of your ears, Instructables user NightHawkinLight has a method to make your own, customized noise-isolating earbuds using a pair of reusable earplugs, some clear silicone, and a little elbow grease.

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