Here is a quick and easy project using scrap molding you may already have on hand. Build these serving trays using the free instructions at the link.
In this case wall panels were created with molding and wallpaper. The same can be done with paint. Here is a how-to on creating wall panels with moldings.
In this article, we will show you how to install trim on the walls and ceiling first, then add the crown. The three combined look elegant and go up more easily than a single large piece.