I used two 9 inch round cake pans and a round glass Pyrex oven safe bowl for the top of the dress. I tinted the fondant a light green, dark green, light yellow and dark yellow for the layers of the dress. I used one whole layer of light green fondant to cover the entire bottom of the dress first, then I cut different sizes of leaves and flowers from the other colors to fill in the gap between the doll and the cake.
The bodice was kind of tricky, so I winged it and it turned out pretty good. I also added a train in the back because of all the extra fondant I had out of a 2 1/2 lb package. I bought the doll at Toys r us for $11.99 and took her dress off, don’t forget to wrap her legs in Saran wrap before you put her in the homemade princess and the frog birthday cake!! :)