Answer:

skulls

Answer	Crossword Clue
SKULLS	Halloween decorations
SKULLS	Horror film symbols
SKULLS	Grisly horror film discovery

SKULLS	Day of the Dead decorations
SKULLS	Crossbones' partners
SKULLS	Items on pirate flags
SKULLS	Brain enclosures.
SKULLS	Figures pictured with crossbones.
SKULLS	Craniums
SKULLS	Menacing symbols
SKULLS	Popular Halloween decoration

SKULLS	Some Halloween decorations
SKULLS	Pirate flag icons