Send in the nyarines

code/game/objects/items/props/helmetgarb.dm

@@ -632,3 +632,9 @@
 	icon = 'icons/obj/items/spray.dmi'
 	icon_state = "pestspray"
 	w_class = SIZE_SMALL
+
+/obj/item/prop/helmetgarb/cat_ears
+	name = "'tactical' cat ears'"
+	desc = "A set of magnetic cat-ears capable of being mounted onto a helmet. You're either brave, stupid or really like getting beaten up if you wear these around the barracks."
+	icon_state = "kitty_coded"
+	w_class = SIZE_SMALL

code/modules/client/preferences_gear.dm

@@ -441,6 +441,10 @@ GLOBAL_LIST_EMPTY(gear_datums_by_name)
 	path = /obj/item/prop/helmetgarb/chaplain_patch
 	allowed_origins = USCM_ORIGINS
 
+/datum/gear/helmet_garb/cat_ears
+	display_name = "'Tactical' cat ears"
+	path = /obj/item/prop/helmetgarb/cat_ears
+
 /datum/gear/paperwork
 	category = "Paperwork"
 

code/modules/clothing/head/helmet.dm

@@ -307,6 +307,7 @@ GLOBAL_LIST_INIT(allowed_helmet_items, list(
 	/obj/item/prop/helmetgarb/family_photo = "family_photo",
 	/obj/item/prop/helmetgarb/compass = "compass",
 	/obj/item/prop/helmetgarb/bug_spray = "bug_spray",
+	/obj/item/prop/helmetgarb/cat_ears = "kitty_coded",
 
 	// MISC
 	/obj/item/tool/pen = "helmet_pen_black",