I know this exists as a thing but I'd never really noticed it until seeing this cake by Isabelle Li (T Room Bakery) for Madeleine and Adam's wedding. Layering flowers between cake layers is a great way to add height. Seems like you could do something really pretty to this affect with a single layer cake for a birthday party or other celebration as well. Could you make little cupcake layers and have flowers between the lower half and the upper half? This I might have to try.
Photography: The Other Angle Photography