I feel your pain! The same thing happened to me two weeks ago. The night before my daughter's wedding my DH accidentally destroyed the big bow that was to sit on the bottom tier of the wedding cake. First I panicked, then decided I had to try something. So I made a new bow out of straight gumpaste (Wilton) and I put it in the oven with just the oven light on overnight & to my surprise it was solid enough to hold up on the cake the next day. I don't usually use straight gumpaste ...I prefer using a 50/50 mix but under the circumstances I had no choice. But it worked and no one even knew what happened...until my dear hubby mentioned it in his father of the bride speech!!