A small Christmas tree can be made to appear bigger with a few simple tricks. One way is to use ornaments and decorations that are large in scale, such as oversized baubles or a large star topper. This creates the illusion of a larger tree, as the ornaments will make it appear fuller and more impressive. Additionally, you can add extra layers of branches by wrapping the tree with faux evergreen garlands, which will add volume and create a fuller look. Finally, adding a few trees of different heights and sizes around the small tree can create the illusion of a larger and more elaborate display.