Piece of Moon Squid

The Piece of Moon Squid is a pet item that has a chance to drop from the Moon Lord in Master Mode. It summons a pet Moonling which resembles The Moon Lord's Head.

Trivia

 * The item's tooltip, "The forbidden calamari", is likely a reference to a common internet saying, which means that something looks similar to, typically, something edible, but is not edible, someone will say "forbidden -similar looking edible-".