Do you want to do the opposite of deterring a thief? Do you essentially want to invite one in? Get yourself a shattered door!
The shattered door is a visually mystifying piece of art by Leandro Erlich. It incorporates a full-sized wooden door and then deconstructs it to where it appears to be shattered. At that point the piece is then mounted inside a fully-formed door frame. Amazingly, the piece looks quite functional, but undoubtedly would make the worst door ever.