1. A high fidelity skin-simulating layer comprising: an epidermis-simulating layer, wherein the epidermis-simulating layer comprises a mixture of a platinum polysiloxane derivative, a silicone rubber, and a polysiloxane softener; an upper dermis-simulating layer disposed upon and adjacent to the epidermis-simulating layer, wherein the upper dermis-simulating layer comprises a mixture of a silicone rubber and a polysiloxane softener; a lower dermis-simulating layer disposed upon and adjacent to the upper dermis-simulating layer, wherein the lower dermis-simulating layer comprises a plurality of layers of polyamide mesh; and a subcutaneous-simulating layer disposed upon and adjacent to the lower dermis-simulating layer, wherein the subcutaneous-simulating layer comprises a mixture of a platinum polysiloxane derivative and a polysiloxane softener.