The wings, being of simple construction, actually made it through the day. One of the arm straps did come partially off at the end, when my sister carried her facing outwards (fresh fear of spit up, my husband thinks), which meant the wings were being put into an awkward angle, something that would have been an issue for many wings. That's okay though; they are easily repaired! :-)
I'm so happy with how these turned out. Not bad for cardboard, floral tape, iridenscent tissue paper, scrap ribbon, and hot glue!