Elephant Ears question

Elephant Ears question

Hi, everyone. I hope someone can help me with this. I'm entering some cut leaves, ivy and herbs in the state fair on Wednesday. To see how my black Elephant Ear would hold up, I cut it this morning, brought it in and put it in a vase with warm water. It wilted within three hours! I'm afraid the same thing will happen on Wednesday, since judging doesn't start until two hours or so after I'll be entering my plants. Does anyone know what I can do to preserve my elephant ear? Or at least keep it straight and standing til after judging? ;) Thanks!
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