Wash and save the glass jar next time you run out of mayonnaise. Next hot summer day, put a couple of scoops of your favorite ice cream in the jar - add some milk. Tighten the lid on the jar and shake vigorously until the ice cream has mixed and foamed with the milk. (They call this treat 'shake' for a reason.) Pull a couple of chilled glasses from the freezer, pour the mixture into the glasses and share.

You can add mashed fruit, or a spoonful of powdered malt to the ingredients to vary the equation. Life is good.