Balloon

Balloons are entities which float upwards when placed.

Usage
When on a mob or a fence, balloons will attach to the mob or block, similarly to a lead. Balloons will float into the air, but will be kept grounded if tied to a fence. If tied to a mob, the balloon will float away and carry the mob high into the air, before both eventually despawn.

History
Воздушный шар 气球