Polyhedra are made in the form of each of the five Platonic solids . When they are dormant, or "sleeping," they simply appear to be a large geometric solid, constructed of wood, stone, metal, or some other material. However, an awakened polyhedron will appear to suddenly grow eyes, legs, and arms. Polyhedra aren't known to be particularly frightening, but people who have never met one will most likely be somewhat wary when a polyhedron enters town.