I want to surprise my niece with a birthday cake. I am unable to take a frosted cake on board a plane; so I am considering of taking it with me on a 9 hour trip to Ohio. Falling short of packing it in a cooler with all the risk involved of keeping it cold with ice; do you have any suggestions on a good birthday cake idea? I considered bringing unfrosted cupcakes and taking tubs of cold buttercream with me which is easier to handle or lemon bars, brownies, or blondies that I can stack and put candles on them. I still want a traditional cake, though. I appreciate any help out there.