Cryogenics for flowers?
Could you freeze your bouquet in a big block of ice...forever? As long as it stayed frozen and it wasn't cracked in any way, it seems like it would work. I know you're thinking, "Well, even if it does preserve it, who wants to store that in their freezer next to last week's meat loaf?" but I don't think it'd take up too much space (certainly not as much as one's wedding dress in the closet).
In theory, you could keep your bouquet for years and years and it would never wilt. Your daughter could literally unfreeze it for her wedding day. Does anyone know if something like this has been done before? I'm tempted to buy a few flowers from the grocery store and do some experimenting.