To make a rag Christmas tree, you will need the following materials: a cone-shaped object (such as a piece of cardboard or foam), scraps of fabric in different colors, string or yarn, scissors, and a hot glue gun. First, cut your fabric scraps into small pieces. Then, use the hot glue gun to attach the fabric pieces to the cone-shaped object, starting at the bottom and working your way up. Add a string or yarn at the top of the cone to use as a hanger. Once you have finished decorating the rag Christmas tree, you can add lights or other decorations if desired.