Contributes more missing belt, back, and otherwise ERRORing sprites. (#52670)

* I'm crying over all these beeeeeeelts

* Removes ?

* Provides some close enough substitutes for inhands

code/game/objects/items/clown_items.dm

@@ -164,6 +164,7 @@
 	icon = 'icons/obj/items_and_weapons.dmi'
 	icon_state = "bike_horn"
 	inhand_icon_state = "bike_horn"
+	worn_icon_state = "horn"
 	lefthand_file = 'icons/mob/inhands/equipment/horns_lefthand.dmi'
 	righthand_file = 'icons/mob/inhands/equipment/horns_righthand.dmi'
 	throwforce = 0
@@ -195,6 +196,7 @@
 	name = "air horn"
 	desc = "Damn son, where'd you find this?"
 	icon_state = "air_horn"
+	worn_icon_state = "horn_air"
 
 /obj/item/bikehorn/airhorn/Initialize()
 	. = ..()
@@ -206,6 +208,7 @@
 	desc = "Golden? Clearly, it's made with bananium! Honk!"
 	icon_state = "gold_horn"
 	inhand_icon_state = "gold_horn"
+	worn_icon_state = "horn_gold"
 	COOLDOWN_DECLARE(golden_horn_cooldown)
 
 /obj/item/bikehorn/golden/attack()

code/game/objects/items/singularityhammer.dm

@@ -82,6 +82,7 @@
 	name = "Mjolnir"
 	desc = "A weapon worthy of a god, able to strike with the force of a lightning bolt. It crackles with barely contained energy."
 	icon_state = "mjollnir0"
+	worn_icon_state = "mjolnir"
 	lefthand_file = 'icons/mob/inhands/weapons/hammers_lefthand.dmi'
 	righthand_file = 'icons/mob/inhands/weapons/hammers_righthand.dmi'
 	flags_1 = CONDUCT_1

code/game/objects/structures/watercloset.dm

@@ -239,6 +239,7 @@
 	icon = 'icons/obj/watercloset.dmi'
 	icon_state = "rubberducky"
 	inhand_icon_state = "rubberducky"
+	worn_icon_state = "duck"
 
 /obj/structure/sink
 	name = "sink"

code/modules/mining/lavaland/necropolis_chests.dm

@@ -191,6 +191,7 @@
 	desc = "A mysterious pendant. An inscription on it says: \"Certain death tomorrow means certain life today.\""
 	icon = 'icons/obj/lavaland/artefacts.dmi'
 	icon_state = "memento_mori"
+	worn_icon_state = "memento"
 	actions_types = list(/datum/action/item_action/hands_free/memento_mori)
 	resistance_flags = INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | UNACIDABLE | ACID_PROOF
 	var/mob/living/carbon/human/active_owner

code/modules/photography/camera/camera.dm

@@ -7,6 +7,7 @@
 	desc = "A polaroid camera."
 	icon_state = "camera"
 	inhand_icon_state = "camera"
+	worn_icon_state = "camera"
 	lefthand_file = 'icons/mob/inhands/misc/devices_lefthand.dmi'
 	righthand_file = 'icons/mob/inhands/misc/devices_righthand.dmi'
 	light_color = COLOR_WHITE

code/modules/projectiles/guns/magic/staff.dm

@@ -106,6 +106,7 @@
 	ammo_type = /obj/item/ammo_casing/magic/locker
 	icon_state = "locker"
 	inhand_icon_state = "locker"
+	worn_icon_state = "lockerstaff"
 	max_charges = 6
 	recharge_rate = 4
 
@@ -117,7 +118,8 @@
 	fire_sound = 'sound/magic/staff_healing.ogg'
 	ammo_type = /obj/item/ammo_casing/magic/flying
 	icon_state = "staffofflight"
-	inhand_icon_state = "staffofflight"
+	inhand_icon_state = "staffofchange"
+	worn_icon_state = "flightstaff"
 
 /obj/item/gun/magic/staff/sapping
 	name = "staff of sapping"
@@ -125,7 +127,8 @@
 	fire_sound = 'sound/magic/staff_change.ogg'
 	ammo_type = /obj/item/ammo_casing/magic/sapping
 	icon_state = "staffofsapping"
-	inhand_icon_state = "staffofsapping"
+	inhand_icon_state = "staffofdoor"
+	worn_icon_state = "sapstaff"
 
 /obj/item/gun/magic/staff/necropotence
 	name = "staff of necropotence"
@@ -133,7 +136,8 @@
 	fire_sound = 'sound/magic/staff_change.ogg'
 	ammo_type = /obj/item/ammo_casing/magic/necropotence
 	icon_state = "staffofnecropotence"
-	inhand_icon_state = "staffofnecropotence"
+	inhand_icon_state = "staffofchaos"
+	worn_icon_state = "necrostaff"
 
 /obj/item/gun/magic/staff/wipe
 	name = "staff of possession"
@@ -141,4 +145,5 @@
 	fire_sound = 'sound/magic/staff_change.ogg'
 	ammo_type = /obj/item/ammo_casing/magic/wipe
 	icon_state = "staffofwipe"
-	inhand_icon_state = "staffofwipe"
+	inhand_icon_state = "pharoah_sceptre"
+	worn_icon_state = "wipestaff"