I'd never been to a bridal shower that's done this tradition before (unless someone just saved the bows and did it later). Apparantly someone make a bouquet out of all the bows from the bridal shower gifts and a paper plate, and then the bride is supposed to use this "bow-quet" during the wedding rehersal in place of her real bouquet.
Group shot of the bridesmaids, bride, and flower girl. (I snatched this picture from her wedding blog) .
Speaking of crafty bouquets..go check out Princess Lasertron's blog. She makes awesome bouquets out of felt and buttons. And they look much better (and much more coordinated) than my makeshift bouquet out of bows!