Reading the processus document for Saint Clare of Assisi, I happened upon one of the more interesting miracle stories I've ever read. According to one witness, a nun who had lived in the same monastery with Clare for many years, "a young boy of the city of Spoleto, Mattiolo, three or four years old, had put a small pebble up one of the nostrils of his nose, so it could in no way be extricated. The young boy seemed to be in danger. After he was brought to Saint Clare and she made the sign of the cross over him, that pebble immediately fell from his nose. The young boy was cured."
The Lady: Clare of Assisi: Early Documents, edited and translated by Regis J. Armstrong (New York: New City Press, 2006), 154.