We have Explosion card pattern that would be awesome with this! How-to Make a Fondant Explosion Cake- use royal icing to to make stars and other things. I would not use fondant tastes yucky, prefer buttercream icing .
Easter Cake - The bottom tiers are vanilla cake with lemon filling and the top tier is chocolate cake with vanilla filling all iced in vanilla buttercream. Inspiration from many cc members photos and Peggy Porschen's Romantic Cakes book.