Thread a sequin cup onto pin. Dip tip of pin into craft glue and insert into styrofoam ball. Repeat process, placing each sequin next to the previous ones in such a way that the entire ball is covered with sequin.
Hot glue the end of the flair string to the ball. Wrap it around the ball until it meets the beginning of the string. Cut and hot glue in place. Repeat this process around the ball approximately 6-8 times, depending on the size of the ball you are using.
Using a fresh sequin pin poke a hole through a sequin into the ball at the top where all the pieces come together. Cut a 6" piece of craft wire and bend in half. Dip both ends into glue and insert into the hole you just made. Let dry. This will form your ornament hanger.
Make enough to decorate your whole tree.