Lordy! We have a family legend where my mother and her cousin decided they would eat several bobby pins each, when my nanna freaked out and took them to the dr he advised her to feed them some cotton wool (!!) So they both ate a cottonwoolball and vegemite sandwich!!

On a similar vein, DD1 sucked on a syngonium leaf (corrosive) and that needed a phone call to the poisons info centre and some milk and yoghurt to fix it.