These replicas are often built from a combination of different truck parts, such as a 1972 International cab and a 1957 Chevy, and are heavily modified to achieve Mater's signature rusted, buck-toothed look, including custom features like a functional or decorative crane and his distinctive "eye" windshield. Some versions are fully drivable for parades and events, while others are smaller-scale collectible models or non-functional statues.