Make it non-alcoholic: Swap the champagne for ginger ale, club soda or Sprite, and use raspberry syrup in place of Chambord.
Champagne vs. Prosecco: Either works — since Chambord is sweet, reach for a dry sparkling wine to balance it out.
Batch prep: Add raspberries and Chambord to each glass ahead of time, then top with champagne right when guests arrive.