Then, with sanding paper, you can quickly smoothen out the edge of the glass you've just cut. It's that simple! A modern glass bottle takes around 4000 years or more to decompose. So instead of throwing away that old water bottle that your family has used for ages, those kombucha bottles you can't seem to clean anymore, or those liquor or wine bottles you've collected after years of partying, why don't you make all those more useful?.
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