Fold the sheet of paper in half and cut into two 5-inch squares. Stack those two pieces on top of one another and fold in half once. Cut a half circle. When you open the papers you should have two identical circles. Keeping them together, fold in half and then in half again.
Cut a few simple shapes from the edges of the paper to create a simple paper snowflake. When you open them up you should have two identical shapes. Separate them and set one aside, placing the second one on the work surface.
Cut small pieces of tissue paper, big enough to cover a hole on the snowflake, but not too large that it overlaps other holes. Cover each hole with different colors, using a glue stick to adhere.
Take the other snowflake shape and line up the holes so that when stacked on top of one another they are identical. Use a glue stick to attach it, sandwiching the tissue paper in between the two snowflakes.
Fold in half, creating a half circle. Cut notches in the curved edges of the circle to make the snowflake more decorative.
Thread your needle and poke it through the top of the snowflake, about an inch from the edge. Tie the thread off and add a ribbon bow to the top of the hanger.