I like the concept of latex moulds. This would save the problem and expense of finding someone with a kiln and hiring the firing of a clay or bisque mould. Would the flexibility of the latex be a problem or a hindrance? I suppose one could pour a side of the mould and then place a thin perforated hardboard of some type on it before it is set, and pour more latex on that to make it a part of the mould and thereby make it stiffer and stronger? Is that unnecessary busywork? Great ideas from everyone.