This hack is easy and safe — use a 9V battery, vinegar, and salt to permanently etch designs on pots, pans, or any other metal surface you'd like to mark.
from MAKE http://ift.tt/1uV21NJ
via IFTTT
This hack is easy and safe — use a 9V battery, vinegar, and salt to permanently etch designs on pots, pans, or any other metal surface you'd like to mark. 
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