This is such a clever idea! Not only is this a unique way to use mason jars, but it's great for re-purposing small plastic snack containers instead of throwing them away. These containers are handy for road trips, snacks, lunches or picnics. They're also amazing for keeping ingredients separate that would get soggy if they were packed together (like chips and dip, cheese and crackers, and granola and yogurt). Snacks have never been so tasty!