Simple but effective!
Six layers of rainbow vanilla love, stacked high, covered with smoothed buttercream and showered with rainbow sprinkles... perfect.
Now, the only issue with this little lovely is that when you make a cake higher than it is wide, it tends to want a little lie down when you drive it around corners (especially when you've made it to taste this good).
This cake had quite a way to go, so in order to make sure that the cake was safely transported I gave it a central bubble straw support to make sure that the layers didn't slide around on the buttercream.
I also screwed a dowel into the cake drum and positioned the bubble straw and cake over it so nothing could shift during delivery.
I hadn't even got back from delivering the cake before the customer sent me this photo. It seems to have gone down well!