This is by far my biggest feat yet and I love it. My structural engineer sister was in town (thank God!) and saved the day. The 2 cakes are connected by way of a suspended rainbow supported by thin skewers. The rainbow touched the cake minimally. I could not BELIEVE how it turned out. Thanks to my sister, I created a master piece. I told her, "You make it sturdy, I'll make it pretty." My all-time favorite cake.