If you're preparing for a crowd and want to go a little more creative -- and citrusy -- than straight champagne, try this tasty tart cocktail from Bon Appetit:
3 blood oranges (about 1 pound)
1 1/2 cups gin
2 tablespoons sugar
1/2 teaspoon angostura bitters
2 750-ml bottles chilled Champagne
Directions: Cut 1 orange in half through stem. Cut each orange half crosswise into 6 slices; reserve for garnish. Using small knife, cut peel and white pith from remaining 2 oranges; chop oranges. Transfer chopped oranges with juices to bowl; mash with potato masher or wooden spoon. Stir in gin, sugar, and bitters. Strain into 2-cup measuring cup, pressing on solids to release liquid. Chill 4 hours.
Pour scant 2 tablespoons gin mixture into each of 12 glasses; fill with Champagne and garnish with orange.