Can pewter be molded into a custom urn shape?

Hey everyone, my gran always used to jest and say that she is from the faeries, thanks to her allergic reaction whenever she touched silver. Because of this, her jewelry was always specially made from pewter, and I would like to honor her by making her burial urn out of it as well. I would like to make it into a custom shape for her, perhaps the shape of an egg to symbolize rebirth.