What are some popular materials used in cosplay construction?

Common cosplay materials include fabric (cotton, polyester, spandex), foam (EVA foam, craft foam), Worbla (thermoplastic), thermoplastics (heat-formable plastics), Worbla, paint, wigs, and various crafting supplies like glue, thread, and embellishments. The specific materials used depend on the complexity of the costume and the desired effect.