Champagne & St. Germain: Pour elderflower liqueur into bottom of champagne flute. Fill the remainder of the glass with a brut Champagne of your choice.
Gin & Lemonade: Combine the juice of one pink lemon (regular lemon if you can't find it!), simple syrup and gin in a cocktail shaker filled with ice. Shake to combine and strain over ice into a rocks glass. Top with club soda. Serve with a lemon wheel.