Bloody Tear

The Bloody Tear is a consumable item used to summon a Blood Moon. It can only be used at night; attempting to use it during the day will not commence the Blood Moon and will not consume the item. Likewise, the Bloody Tear cannot be used during a Blood Moon.

It is dropped with a chance by the Wandering Eye Fish, Zombie Merman, Blood Zombie, Drippler, Clown, Blood Eel, and Hemogoblin Shark, and with a  chance by The Groom, The Bride, and Dreadnautilus.

Trivia

 * Bloody Tears will only drop if it is night and during a Blood Moon. Thus, any Blood Moon enemies killed after the Blood Moon ends will not drop a Bloody Tear. Also, statue-spawned enemies do not drop Bloody Tears.