What did the slipknot masks became famous for?

The Slipknot masks have become famous as symbols of the band's music and overall image. Each member of the band wears a unique mask, which has contributed to their distinctive and memorable appearance. The masks are often seen as a way for the band members to express their personalities and creativity, as well as to hide their identities. They have become icons in the world of heavy metal music and have helped to make Slipknot one of the most recognizable bands in the genre.