Models are made through a process that provides for a bonding mechanism of pre-made PVA parts to create more complex structures. The components are bonded together by wetting the surfaces to be connected with a PVA solution. The components are then adjoined together and bonded through an additional processing or curing, e.g., freeze-thaw cycle. This process can be repeated multiple times to create more complex structures or models. In another embodiment, a textile or fabric type material is used to increase the radial strength of the models. In such an embodiment, a usually thin piece of textile material, such as a nylon fabric, may be placed within the core molding. Liquid PVA then flows through the nylon hosiery or textile material and one or more curing process are then applied, which allows the PVA solution to bond or otherwise adhere with the material.