Okay, so a recent Bride and her husband walked in today , wanting to frame her bouquet, and his boutenier (sp?) I have decided to use a bayview display type glass encasement for it, and mounting the two items ontop of a nice suede mat. My question comes in longevity of the item. They have had the flowers dried. Aside from running a bead of Silicone around the rabit of the frame, and the typical atg & dust cover back, is there anything else I should do to ensure a healthy life for this cherished keepsake?