how do you transport your cakes made in the torte pans? I have a tupperware cake saver thing (really old) that I use at home, but it is barely bigger around than the torte pan cakes and always gets frosting on the inside sides of the lid since it is such a tight squeeze. I've made cakes at shows before, but haven't made them ahead to take along because I can't figure how to transport. ideas? thanks.