diff --git a/code/modules/clothing/neck/_neck.dm b/code/modules/clothing/neck/_neck.dm
index d4cfbd1a84..5f7984c707 100644
--- a/code/modules/clothing/neck/_neck.dm
+++ b/code/modules/clothing/neck/_neck.dm
@@ -193,15 +193,14 @@
 	pocket_storage_component_path = /datum/component/storage/concrete/pockets/small/collar/locked
 	var/lock = FALSE
 
-/obj/item/clothing/neck/petcollar/locked/attackby(obj/item/key/collar, mob/user, params)
-	if(lock != FALSE)
-		to_chat(user, "<span class='warning'>With a click the collar unlocks!</span>")
-		lock = FALSE
-		item_flags = NONE
-	else
-		to_chat(user, "<span class='warning'>With a click the collar locks!</span>")
-		lock = TRUE
-		item_flags = NODROP
+/obj/item/clothing/neck/petcollar/locked/attackby(obj/item/K, mob/user, params)
+	if(istype(K, /obj/item/key/collar))
+		if(lock != FALSE)
+			to_chat(user, "<span class='warning'>With a click the collar unlocks!</span>")
+			lock = FALSE
+		else
+			to_chat(user, "<span class='warning'>With a click the collar locks!</span>")
+			lock = TRUE
 	return
 
 /obj/item/clothing/neck/petcollar/locked/attack_hand(mob/user)
diff --git a/code/modules/research/designs/autolathe_designs.dm b/code/modules/research/designs/autolathe_designs.dm
index 7ceeda2c64..173fd5a813 100644
--- a/code/modules/research/designs/autolathe_designs.dm
+++ b/code/modules/research/designs/autolathe_designs.dm
@@ -870,3 +870,19 @@
 	materials = list(MAT_METAL = 100, MAT_GLASS = 100)
 	build_path = /obj/item/disk/holodisk
 	category = list("initial", "Misc")
+
+/datum/design/lock_collar
+	name = "Lockable Collar"
+	id = "lock_collar"
+	build_type = AUTOLATHE
+	materials = list(MAT_METAL = 1200, MAT_GLASS = 100)
+	build_path = /obj/item/clothing/neck/petcollar/locked
+	category = list("initial", "Misc")
+
+/datum/design/collar_key
+	name = "Collar Key"
+	id = "collar_key"
+	build_type = AUTOLATHE
+	materials = list(MAT_METAL = 300, MAT_GLASS = 150)
+	build_path = /obj/item/key/collar
+	category = list("initial", "Misc")