all works

modular_citadel/code/modules/client/loadout/__donator.dm

@@ -404,3 +404,9 @@ datum/gear/darksabresheath
 	category = SLOT_WEAR_SUIT
 	path = /obj/item/clothing/suit/commjacket
 	ckeywhitelist = list("sadisticbatter")
+
+/datum/gear/longblackgloves
+	name = "Luna's Gauntlets"
+	category = SLOT_GLOVES
+	path = /obj/item/clothing/suit/commjacket
+	ckeywhitelist = list("bigmanclancy")

modular_citadel/code/modules/custom_loadout/custom_items.dm

@@ -504,4 +504,10 @@
 	alternate_worn_icon = 'icons/mob/custom_w.dmi'
 	mutantrace_variation = NO_MUTANTRACE_VARIATION
 
-
+/obj/item/clothing/gloves/longblackgloves
+	name = "Luna's Gauntlets"
+	desc = "These gloves seem to have a coating of slime fluid on them, you should possibly return them to their rightful owner."
+	icon_state = "longblackgloves"
+	item_state = "longblackgloves"
+	icon = 'icons/obj/custom.dmi'
+	alternate_worn_icon = 'icons/mob/custom_w.dmi'