To make a Christmas tree with wire, you will need some wire (either galvanized or stainless steel), wire cutters, pliers, and a sturdy base such as a dowel or rod. Start by bending the wire into a triangular shape, then attach it to the base. Cut and bend the wire to create branches, starting from the top of the tree and working your way down. Once you've created the desired shape, use pliers to bend the wire into a natural-looking pattern. Finally, add decorations such as ornaments and lights to complete your tree!