I have a cake order that is due in two weeks, that is for two one layer 14" cakes decorated with rosettes. The mother of the twins would like to have a "bow tie" type bow on top of each cake. I have never made one of these and my attempts have been futile. What size bow should I put on these cakes? And if I can't get this mastered in the next two weeks... Does anyone know where I can buy them? This bow is kicking my arse.