Quick and easy molds for those interested in making their own is to weld end plates to angle iron,(they also form the legs) and use them as the molds. Advantage is that you get triangular shaped pigs, which stack together more densely so they take up less space for the same weight.
I don't have a problem with heeling, but my wife and some regular guests don't care for it, so I plan to keep the original pigs aboard, along with a few trim pieces.
Ken.