A bunch of bronze skeleton keys for costume bedazzling. http://www.amazon.com/gp/product/B00KXME682/ref=oh_aui_detailpage_o07_s01?ie=UTF8&psc=1

or maybe my industrial french fry cutter. http://www.amazon.com/gp/product/B000T3OO8C/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1