GPH's set up looked pretty organized... So I think i'll follow suit
Scratch
Ol' Scratch's ash can
Ol' Scratch's infernal pitchfork
Ol' Scratch's manacles
Ol' Scratch's ol' britches
Ol' Scratch's stove door
Ol' Scratch's stovepipe hat
Frosty
Frosty's arm
Frosty's carrot [X]
Frosty's iceball
Frosty's nailbat
Frosty's old silk hat [X]
Frosty's snowball sack
Oscus
Oscus's dumpster waders
Oscus's flypaper pants
Oscus's garbage can lid
Oscus's neverending soda
Oscus's pelt
Wand of Oscus
Zombo
Zombo's eye
Zombo's grievous greaves [X]
Zombo's shield [X]
Zombo's shoulder blade
Zombo's skull ring
Zombo's skullcap
Chester
Chester's Aquarius medallion
Chester's bag of candy
Chester's cutoffs
Chester's moustache
Chester's muscle shirt
Chester's sunglasses
Hodgman
Hodgman's bow tie
Hodgman's porkpie hat [X]
Hodgman's lobsterskin pants [X]
Hodgman's almanac
Hodgman's lucky sock
Hodgman's metal detector
Hodgman's varcolac paw
Hodgman's harmonica
Hodgman's garbage sticker
Hodgman's cane
Hodgman's whackin' stick
Hodgman's disgusting technicolor overcoat
Hodgman's imaginary hamster
Or in summary:
Frosty's carrot
Frosty's old silk hat
Zombo's shield
Zombo's grievous greaves
Hodgman's porkpie hat
Hodgman's lobsterskin pants