Pre-mixed cocktails in Mason jars with screw-on lids perched in an enormous galvanized-metal bucket.
I mean, obviously.
Moving beyond garden parties: if you’re having a summer wedding, I’m going to go ahead and insist that you do something like this (with alcoholic or non-alcoholic drinks, whichever you prefer) pre-ceremony; so fun, and I think it’s such a nice touch to give your guests something to sip on while they wait to watch you walk down the aisle.
St. Germain Cocktail (my personal favorite)