Snow Golem

A Snowman is an upcoming mob which was first mentioned by Notch on September 21st, 2011 to appear in Beta 1.9. According to the tweets by Notch, a Snowman is a friendly mob. You will be able to craft Snowmen, likely requiring the materials such as snowballs, coal, and sticks. A Snowman will throw snowballs at enemy mobs and will melt in warmer biomes. As Snowmen move, they leave a trail of snow on the ground.

Behavior
Snowmen will not attack their creator. However, they will throw snowballs at all other mobs, provoking them. This gives them an almost suicidal nature, attracting enemies which can kill it or the player.

Trivia

 * This is the first mob the player can directly create, using crafting. The closest the player had previously was creating Chickens by throwing eggs.