Eeno

These snow creatures live in the snow and throw snowballs at you. They make a horrible noise and move rather slowly. To kill them, attack them with your sword. It is susceptable to heat, which means if you attack with a Fire Arrow, it will melt...thus destroying it.

Some Eenos are larger than others, and can toss snowballs larger than the average person. When attacked, these creatures will split into three smaller Eenos. Of course, a Fire Arrow will still defeat these large Eenos in a single attack.

In the Legend of Zelda: Majora's Mask official walkthrough, there is a section called "Tickle Me Eeno", a direct parody of the toy Tickle me Elmo.