Brides.com: All Things Rainbow. A humble buttercream-frosted cake that reveals brightly colored layers once you slice into it is a must. Click here to see more rainbow wedding cakes. Cake by One Charming Party
5 Inspiring Surprise-Inside Cakes: Amanda Rettke, the blogger behind I Am Baker, released her first cookbook today, Surprise-Inside Cakes ($17, originally $30), filled almost entirely with never-before-seen content.