Apply heat to cosplay thermoplastics and form them into almost any shape. Thermoplastic sculpting is easy — just use a heat gun to turn the material into the form you want. Hot air, an iron, or steam often work, too. Available in pellets or sheets, thermoplastics have smooth surfaces and become rigid once cool, maintaining their new shape.
Thermoplastic sheets can be cut down to size and into specific shapes. Plastic pellets can be sculpted or pressed into molds. Blick carries popular thermoplastic brands, including Worbla and Thibra.