Paper Flower Obsession - How to make paper Orchids - Tutorial and free printable from ellinée. (The white orchid would look especially lovely with some shimmer spray or perfect pearls to make it sparkle).
Kitchen or anywhere DIY. Seems simple enough, depending on your gap between shelves, anywhere from ropes to ropes for your spacing. You could even use wider wood, just adjust your rope length to accommodate your width and height of your shelves.