My client wants a Frozen/Elsa theme cake with dark chocolate icing.  Any ideas, besides covering in fondant?

AI'm also in search for a chocolate Frozen cake! I will follow this thread with interest. I think this one is cute. http://cookiesncards.blogspot.ca/2014/09/order-for-cakes-gluten-free-frozen.html

AJust a rough idea (my phone is refusing to open the link unfortunately): Half dark chocolate for summer/ Anna and one half in white chocolate for winter/ Elsa design. Figures made with modeling chocolate... On the "frozen" cake half you could add sugar glass ice and royal icing snow on trees etc.