Adds an icon for non-abstract nodrop items (#29452)

code/game/objects/items.dm

@@ -1068,3 +1068,15 @@ GLOBAL_DATUM_INIT(welding_sparks, /mutable_appearance, mutable_appearance('icons
 /// Changes the speech verb when wearing this item if a value is returned
 /obj/item/proc/change_speech_verb()
 	return
+
+/obj/item/proc/set_nodrop(set_value, user)
+	switch(set_value)
+		if(TRUE)
+			flags |= NODROP
+		if(FALSE)
+			flags &= ~NODROP
+		if(NODROP_TOGGLE)
+			flags ^= NODROP
+	if(iscarbon(user))
+		var/mob/living/carbon/C = user
+		C.update_hands_hud()