How to Build a Hidden Wall Safe for $3 [PICS] The Patriot Caller DIY Projects, TPC BUZZ 0 Prev7 of 9NextUse your ← → (arrow) keys to browse 15. Store Your Objects Place your valuables inside. Obviously, cash, keys and other small items are ideal for this size of safe. Prev7 of 9NextUse your ← → (arrow) keys to browse Sponsored Content