Miscellaneous Accessories found within the game are as follows:
Neptune's Shell: This item can be crafted at a Mythril's Anvil and it transforms the holder into merfolk when entering water.
Moon Charm: Werewolf may drop this item and turns the holder into a werewolf on a full moon.
Guide Voodoo Doll: Voodoo Demons may drop this item and it allows a player to kill TheGuide when thrown in lava. It can also spawn Wall Of Flesh if thrown in lava in The Underworld.
Tool Belt: This item can be bought from Goblin Tinkerer and it increases the range of block placement by 1.
Music Box: This item can be purchases from Wizard and allows recording and playback of a song.
