My son chose a R2D2 Cake Design for his 4th birthday cake (he and daddy watch Star Wars, including the newer cartoon versions, often).
I baked various round and square cakes and basically cut the shapes I wanted for the body and “arms” of R2D2. I used a Pyrex bowl for the head.
Of course the whole thing was covered with buttercream (including buttercream in between layers) and then covered with fondant. I used the bottom portion of a cupcake stand to elevate the main body of R2D2 (cutting a separate base and allowing the metal rod of the cupcake stand to stick up through the base).
I don’t yet own an air compressor, so I hand painted the body of R2D2 as well as any pieces and parts (also out of fondant), which were “glued” with buttercream.
I baked cupcakes and decorated them with colors and stars to match since I didn’t think the R2D2 was gonna be enough to feed everyone at the party.