Snowballs are items obtained from digging Snow tiles with a Shovel. They can be thrown, but do not hurt mobs, excluding Blazes and the Ender Dragon. Snowballs have about 1/4 the range of Arrows, but are much easier to get. They only stack to 16, similarly to Eggs and Ender Pearls, which makes them a bit inconvenient. These are dropped by dead Snow Golems or by using a shovel to break Snow or a Snow Block. Four Snowballs in a square make 1 Snow block, which can be used to make the golems. The golems also require a Pumpkin. Snowballs can also be shot from Dispensers.
If they pass through Lava, Snowballs will catch on fire and set mobs they hit on fire.
Snowballs are the only items in the game that can only be obtained with a Shovel.
Only one creature in the game gets no red flash when hit with a Snowball: the Wither under the effects of Wither Armor. All projectiles just bounce off.