There are so many items... I believe the way how you put the items together will give a "creepy" effect. Good combo of items might change the cute item into the scary one.
Black/ Brown/ Dark items:
- Bow of Cataclysm
- Vampire Silk Sleepers
- Ravewing
- Dark Lord's Cape
- Dream Shroud
- Heavy Metal Shirt
- Robe of the Underworld
- Skullcracker Armor
- Toga Mortis
- Bed of Nails
- Black Hood
- Basalt Fetish & Basalt Figurine
- Forbidden Tome
- Nightmare Horn
- Forbidden Fruit
- Rotten Heart
- Rotten Witches' Cauldron Seed
- Rotten Meat
- Yielocks
- Death Ring
- Ring of Souls
- Ring of Ending for personal touch
- The True Book of Death
- The Witches' Grimoire/ Unholy Book
- Book of Orc Language
- Feedbag
- Anatomy Book
- Demonbone Amulet
- Kochei's Ancient Amulet
- Onyx Pendant
- Leather Whip
- Death Toll
- Bat Decoration
- Alptramun's Toothbrush
- Black Skull
- Black Pit Demon
- Behemot Claw
- Skull Helmet
- Dark Whispers
- Dark Wizard's Crown
- Galea Mortis
- Ferumbas Hat
- Gryphon Mask
- Horned Helmet
- Porcelain Mask
- Silver Mask
- Spooky Hood
- Werewolf Helmet
- Witch Hat
- Treader of Torment
- Impaler
- Brutetamer's Staff
- Moohtant Cudgel
- Mortal Mace
- Resizer
- Scythe
- Skullcrasher
- The Stomper
- Necromancer Shield
- Spike Shield
- Demon (pet)
& - Dracoyle Statue
- Cat's Paw
- Cavebear Skull
- Cave Devourer Maw
- Dream Warden Claw
- Gloom Wolf Fur
- Grimace
- Morgaroth's Heart
- Maxxenius Head
- Mr Punish's Heandcuffs
- Petrified Screem
- Shadow Mask
- Shadow Paint
- Shamanic Talisman
- Sight Surrender's Eye
- Skull Fetish
- Skull Shatterer
- Stone Wing
- Torn Shirt
- The Handmaiden's Protector
- Trapped Bad Dream Monster
- Urmahlullu's Paw
- Tunnel Tyrant Head
- Leech
- Bone Fiddle
,, ,- Prison Keys
- Captured Wolf
- Closed Silver Trap
- Dark Moon Mirror
- Death Knell
- Large Pliers
- Shadow Cowl
- Spirit Cage
- The Supreme Cube
- Spectral Scrap of Cloth