Here are 3 creatures that live in snowy environments. They have a pink metallic slime on their bodies that make up there horns, and hooves. If they get the right amount of minerals they can grow there horns, and there are able to change there horns shape. If there horns get damaged there are able to repair there horns over time. These creatures have been know to put their heads in the snow to get the plants under the snow.
This creatures have a relative that lives in the mountains.