Snowballs

Snowballs are item obtained when Snow is broken using a shovel. Snowballs can be thrown to knock-back players and mobs, but do not deal any damage.

Crafting
Snow can be crafted into Snow Blocks for compact storage of Snowballs or to create Snow Golems.

4 Snowballs = 1 Snow Block

Trivia

 * Snowballs can pass through Invisible Bedrock in old worlds.
 * Snowballs are useful in moving mobs without damaging or killing them.
 * After Update 0.12.1, the player will be able to throw snowballs faster.
 * Snowballs can harm Blazes.
 * When snowballs go through Lava they become fireballs, but they don't do any damage whatsoever.