Whatnot means etcetera. Whatnot has always referred to knickknacks, but a whatnot used to be the actual name of the shelves to put those little knickknacks on.
Do you have a lot of trinkets scattered around your home? Is There a collection of military pins? Pocket watches? All those Disney figurines in various places? Consider a “what not “shelf. Gather your tiny treasures and put them all together for a visual POW! When you cherish, collect and preserve old objects the interior of your home becomes a special Masterpiece with a true personal touch.