In order to create a cohesive and striking seashell display, there's one thing you want to keep in mind, and that is focus. If your seashell collection is randomly displayed, it can easily loose its importance, and might even come off as clutter. To quote Dorothy Draper again (see Coastal Collections), "Notice how groups of small objects, when they are well arranged, become important and effective." Well arranged can mean anything from sorting your sea shell collection by type, size, color, or even location.
As you can see, your beautiful seashell collection can be displayed in so many ways, and make for quite a visual feast!