Mason Jars are all the rage. Trendy, functional and just plain nicer looking than most containers-here is a tip to make one even more useful. The top shaker lid from a standard parmesan cheese bottle fits perfectly on a standard mason jar bottom. Simply wash lid, fill jar with whatever you want to shake out, tighten cap and use! Recommendations: Parmesan Cheese, Spices, or even Baking soda for household use.