Flowers aren't just popular elements of wedding gowns and wedding invitations, they're popping up all over wedding cakes too. This lush peony is crafted out of icing and sugar, and offers yet another way to tie together the colors and floral scheme of the ceremony and reception. "It's very pleasing to the eye to see beautiful blossoms repeated throughout the room," says Shinmin Li, owner and chief designer of I Dream of Cake in San Francisco.