An inflated non-latex balloon includes at least two latex films that are sealed together at their edges to define an encapsulation member; and an inlet connected to the encapsulation member, wherein the encapsulation member is inflated to a pressure substantially higher than a normal inflating pressure recommended for a typical non-latex balloon and wherein shape of the inflated non-latex balloon is substantially different in comparison with the shape of the balloon if the balloon is inflated to the normal inflating pressure. A method of inflating a non-latex balloon involves over-inflating the non-latex balloon to a pressure substantially higher than a normal inflating pressure recommended for a typical non-latex balloon to achieve a desired shape.