It's a great idea, but you can also make it out of royal icing and combine some small parts with fondant or gum paste. Pipe them out let it dry for 1 day and put it together.
Round Wedding Cakes - purple wedding cake
Wedding cake for Cakes and Sugarcraft Magazine by deborah hwang, via Flickr
Can you believe this is a cake (and all edible)? Truly stunning
Happy Easter - Creative Cakes by Maria Letizia Bruno! Clever! Love Easter time! Family and friends time! #easter #bunny #moments