A Co-workers FDIL asked if I would do her Bouquets and boutonnieres for her wedding in February. I have done several bouquets and such in the past for a few family members but never charged them to do them other than cost of materials. What is a fair percentage or cost to charge for me doing the work. Bridal Bouquet, 4 maids, 17 boutonnieres (yes 17!) and 4 wrist corsages. The flowers are Carnations, Hydrangeas and baby's breathe.