Carve out the impossible with our NEW Cake Shapes Hollows: Strong Hollow Frames for Cut-Outs, and Tunnel Dinkydoodle Cake Shapes are ready-to-decorate 2D and 3D shapes designed to sit beautifully on cakes. New! Cake Shapes Hollows Ever wanted to cut a hole in a cake and had it collapse on you? Meet Hollows: strong, hollow frames that sup