Im making a wedding cake for a friend. I have prepared royal icing flowers to decorate. The cake will be 3 tiers, a 10”, 8” and 6” cake on top. Im planing on using a typical buttercream (no eggs), and straws to stack. will the straws and buttercream be enough to hold it together? Can i decorate with royal icing on friday, refrigerate over night and expect an intact cake when i arrive there 2 hours later on saturday afternoon? Or should i cover it in MMF? i have used this before but i know that you shouldn’t refrigerate fondant, but won’t the buttercream go bad if its not in the fridge? will the straws hold? am i going to arrive to the wedding with a box full of cake mess? What is the best way to tackle this project?