add ID registering

code/game/objects/items/weapons/cards_ids.dm

@@ -788,9 +788,23 @@
 
 /obj/item/card/id/golem
 	name = "Free Golem ID"
-	desc = "A card used to claim mining points and buy gear."
+	desc = "A card used to claim mining points and buy gear. Use it to mark it as yours."
 	icon_state = "research"
 	access = list(access_mineral_storeroom)
+	var/registered = FALSE
+
+/obj/item/card/id/golem/attack_self(mob/user as mob)
+	if(!registered && ishuman(user))
+		registered_name = user.name
+		SetOwnerInfo(user)
+		assignment = "Free Golem"
+		RebuildHTML()
+		UpdateName()
+		desc = "A card used to claim mining points and buy gear."
+		registered = TRUE
+		to_chat(user, "<span class='notice'>The ID is now registered as yours.</span>")
+	else
+		..()
 
 // Decals
 /obj/item/id_decal