Girls love shiny things!  Once they try on a bracelet, they will have to have it.  Allow them to try on the jewelry.  Encourage them to bring in their dress or a photo of their dress.  This will help you to guide them to the right colors, flowers, and accessories to create the perfect corsage and boutonniere.  Create an order form that has the extra items listed with prices, making it easy and accurate for your staff member to total the order, as well as a menu for the designer to follow.