Petal cake tutorial by The Cakeldy. (I think she did it on a birthday cake, but it can easily be done on a wedding cake instead.) It's two parts. The link takes you to a Facebook photo with part 1. Go to the next photo in her album for part 2.
We’ve found a beautiful way to use our Sea Life Fondant and Gum Paste Mold. Use Wilton Ready-To-Use Decorator Icing to make these frozen, seaworthy shapes that top these cupcakes. A great effect that’s so easy to do!: