The most innovative book arrangement: Cool DIY pipe book shelf.for the industrial looking living room.all parts can be bought at home depot, and they will even thread the pipe for you there to the length that you need it! Maybe for bedroom idea.
Hidden doors -- This company makes cabinets, bookshelves and anything you can think of that fits your existing doorjambs thus hiding the door (and also making use of the space) Not sure I like the idea of a 'gun cabinet' door.
Place candles in the shape of a heart for your beach wedding . simple and sweet! I can imagine like after ceremony before reception to enjoy all night! Have guests find their place cards and light their candles!