So my wedding is a ways off, but I was curious about something. Me and my FI are using champagne during our cake cutting ceremony. It was something my parents did, and therefore it is very important to me that I do it. Most people where I am from just use cider, but I want the champagne. My question is do I need to make sure champagne is offered to all our guests that would like some during the toast, or can they just toast with drinks they already have? We are having an open bar at the reception.