This is a mold maker model from which I made a food safe silicon chocolate mold. Thanks to the great crest models from Imminentfate, the the chocolate holding intrusions (http://www.instructables.com/id/White-Chocolate-Skulls-in-PLA-Trays/?ALLSTEPS) from Anna Kaziunas France, everyone loved getting the chocolate Hogwarts crests.

Instructions for the whole chocolate making process:

http://veltema.jp/2015/03/14/Molding-Hogwarts-House-Crests-In-White-Chocolate/