I think there's retained functionality at least in the locking aspect - although, as you say, it might be weakened and not protective: > "Find a piece of wood

I think there's retained functionality at least in the locking aspect - although, as you say, it might be weakened and not protective: > "Find a piece of wood from the High Chaparral (Manginita wood). Drill Deck. Put case in bottle. Put cards in case. Put rope through deck. Tie knot. Put nut, bolt, and lock parts into bottle. Hold bolt with a magnet - screw nut on with dental floss. Assemble and lock padlock. Finally sign the pack of cards".