what is frosty's nose made of

Frosty's nose is made of coal! Coal is a traditional choice for Santa's reindeer and other magical beings, as it has a special connection to Christmas and the festive spirit. Coal represents warmth and cheer, and it's said to have a magical quality that helps bring life to Frosty's snowman form. Coal also gives Frosty a shiny black nose that contrasts with his white face and helps him stand out from the crowd.