CovertFurniture.com has created this end table with two secret gun compartments that drop down from each side.

This BMW 2002, featured on Jalopnik, has a secret gun stash compartment for a pistol in the dash.

This secret bookcase door, featured on Ana White, conceals a closet built in an extra room.

This coffee table from Walmart includes a secret long-gun storage compartment underneath the lift up top. The cabinet is fully lockable and contains two pull out drawers as well.

Custom Design Cabinets, out of Las Vegas, Nevada, can make secret doors and custom cabinetry. Here they've hidden a full-size safe behind a hidden door made to look like a series of drawer fronts.

This in-wall gun safe from Walmart is a cost effective way to securely store rifles and shotguns.

This table from Walmart has a lift up top that reveals a hidden storage compartment below.

This secret bookcase door from Lindy Donnelly slides sideways to reveal a concealed laundry room. The bookcase is custom and uses skateboard wheels to roll on.

This nightstand from MH Furniture Designs includes a secret compartment under the flip-up top.

IKEA Hacker featured this project using a Bonde bookcase. Nicole added 4 castors to the bottom and a sliding rail at top, along with reinforcing the cabinet, to create a sliding bookcase door for a half bath. This isn't completely ...