I am making a 3D R2D2 cake for a grooms cake this weekend and need some help with how I should support it. I was thinking just a larger then normal dowel in the middle with a cake board inbetween each layer. Any other better or more sturdy suggestions would be helpful! I also need help with attaching the arms. I will be making them out of RKT but and unsure of how to properly attach them. Any help would be much appreciated! Thanks so much!