You'll need a piece of paper, a pencil, and some colored markers or crayons. First, sketch a tree trunk and some branches with your pencil. Then, start adding lights on the tree with the colors of your choice. You can make the lights different shapes and sizes, and add some details like holly leaves or snowflakes. Once you're happy with your drawing, use the markers or crayons to color it in. Don't forget to add some shadows to make the tree look more realistic!