I am having a graduation party/bbq in my backyard and am looking for some good desserts that can be made in advance by at least a day or more (perhaps that can be frozen or just store well) and that can serve a crowd - 30 people or so. I was thinking of some giant cobblers since the fruit is so amazing right now, but I'm not sure they can be made in advance at all, or maybe a ton of shortcakes with mixed fruit... I'm at a bit of a loss. Any good ideas out there? Thanks in advance!