Flying Pot
From Zelda Wiki, the Zelda encyclopedia
Flying Pots can be found within certain dungeons in several Zelda games. They appear to be simple pots from a distance, but when approached, they will rise into the air and hurl themselves at Link, sometimes repairing the small damage they deal with the item they contain, usually being a heart.
Striking the pots with the sword or blocking with the shield are effective tactics to avoid damage. Link can also sometimes break them and collect their contents from a safe distance with the Hookshot or Boomerang.