u/CampInternational642

Hi all. I'm wanting to make a series or scriptures, approximately 2-3 feet and organic shapes, that sit in the ground. I'm trying to do this as affordably as possible. Is it possible to dig holes in the ground, shape them with sand and then pour epoxy directly into them? Or should I make the shapes first out of...paper mache? Make a silicone mold and then pour epoxy into that?