I need to make something resembling a British admiral's hat from the Napoleonic era, for a LARP. Something like you would see in Pirates of the Caribbean. Historical accuracy is not a priority. I need to make it as easily and cheaply as possible, but I have no idea where to start. Does anyone have any advice? Materials, pattern, anything? I've looked online for an instructable or tutorial for anything similar, but haven't found anything useful yet.