How Many Wedding Flutes Do I Need To Buy My Daughter Is Receiving An Engagement Ring This Weekend?

My daughter is receiving an engagement ring this weekend? - how many wedding flutes do i need to buy

and bought herself a glass of champagne to the health of the graduation of Waterford. Is it acceptable to buy the game for her boyfriend to celebrate participation and then use the same pair of flutes for the toast of the party? We bought the flute for graduation in that sense, but I want other opinions. Thank you for your advice.