It doesn't matter if it's messy because no one will see that. (And in case you're curious, I was able to later dismantle it, peel off the hot glue, and save the handle intact). The box was covered with frosting, and then I added a couple of her mini dolls. Ta da!
My daughter had requested an ombre pink and white cake, and this one was made with 1 box of white cake mix and 1 box of strawberry cake mix. The bottom layer is strawberry, the top layer is white, and the middle layer was created by mixing the 2 together. If you're using a kitchen scale to make sure everything is even, it's about 600g of batter in each layer.
mini cakes for the dolls out of Golden Oreos and decorated them with Candy Buttons. They sat on mini cupcake stands I had made for a previous party.