Hopefully booking my florist this week, and I've always had this idea that we could rearrange the elements of the bouquets for the reception centerpieces, but the more I think about it the more unrealistic it seems. Conceiving of the centerpieces is one consideration, but my main concern would be who actually does it after the ceremony. I have one good friend, who isn't quite close enough to be a BM, who loves helping with weddings -- I would totally trust her with this task, but I don't want her to spend all (or really any) of the cocktail hour doing this. Taking advantage of people's kindness during the planning phase is one thing, but I won't put my friends to work during the actual wedding. I can't imagine that this would be a quick and easy thing, and I would rather not even attempt it at all than have it done all willy nilly.
Am I overthinking how difficult this would be? What have you done/are you planning to do to make this work?