My son is obsessed with Star Wars and LOVED this R2D2 Star Wars Cake. It turned out to be way bigger than I thought it would be and took some time, but it was worth it.
I used Rice Krispy treats to form the legs and covered with Marshmallow Fondant that I made. The body is 4 round cakes on top of each other (leveled with a cake leveler that takes off the tops of the cakes to make them perfectly stackable) and then the to make the head, I used a Pyrex bowl to bake that cake.
I suggest mixing a box cake WITH a pound cake mix. It gives you a firmer cake so they stack better (also used fondant sticks to “hold” the cake together like nails). I used frosting in between the layers and covered it with icing for the “glue” then covered with marshmallow fondant that I made. I colored fondant blue and grey and cut out all the embellishments for R2D2. I used eatable silver glitter to give the grey a “silver” look and viola.
It was a great cake, and tasted really good too. It was HEAVY, probably 20 pounds!