To decorate your holiday mantel, start by removing everything from the mantle to allow yourself a fresh clean start. Then choose a theme, maybe natural fall materials, some pottery, or a Thanksgiving display. Look in different rooms of your home, gather rustic and vibrant items until you find a collection of items that go together, then try different arrangements until you find a design that is pleasing to you. Try to repeat a color at least three times to maintain continuity, use antiques or vintage elements in your display to make a statement, layer different accessories, and choose items of different heights to add visual interest. There is really no right or wrong way.