To make a Christmas tree ornament, you'll need the following materials: a few pieces of cardboard or paper, some glitter or other decorations, a needle and thread, and some glue. First, cut out a circle or star shape from the cardboard or paper. Then, decorate the shape with glitter, stickers, or other decorations. Finally, use the needle and thread to sew or tie a loop on the top of the shape so that it can be hung on the Christmas tree. Enjoy your beautiful homemade ornament!