We made a little “how to” card w/instructions that we set out by the cocktail station.

Earlier this year I did pre-batched French 75 mix - lemon juice, gin, and simple syrup. If your guests are down to pour ~3 oz of that into a shaker with ice, shake/strain in a coupe, and top with champagne (and a pre-cut lemon peel garnish), it’s vibey and delicious.