DIY Sprinkle Rainbow Cake Tutorial - CRAZY, but fun. I have a friend who I think would love this!
I'm pretty sure this is the cutest cake ever! and my youngest niece just mentioned wanting a rainbow cake for her birthday next month! maybe I need to check out the tutorial for this Rainbow Petal Cake
Cupcake Rainbow Recipe: You need at least 24 cupcakes to create a cupcake rainbow. It’s easy to create and decorate.
Psychedelic Rainbow Swirl Lollipop Cake
Best Fluffy Frosting: Also has recipes for rainbow cake and for camo cake (great idea for Tony's birthday!)