Calamity's Vanities/Can of Wyrms

Not to be confused with the Can Of Worms, a Vanilla 1.4 exclusive Grab Bag.

The Can of Wyrms is an Expert Mode-exclusive pet summoning item which drops from Eidolon Wyrms. It summons an Eidolon Inchwyrm to follow the player. The item can be obtained with a 100% chance from the Juvenile Eidolon Wyrm if defeated in a world where Cryogen, Golem, Plantera, and the Lunatic Cultist haven't been defeated yet.

Trivia

 * The item was previously known as, 'Abyssal Megaphone' and was based on the Eidolic Wail.