In a small saucepan, bring sugar and water to a boil. Cook and stir until sugar is dissolved; set aside to cool.
Place the kiwi, mint and sugar syrup in a blender; cover and process until blended. Pour into a large pitcher; stir in vodka if desired. Refrigerate until chilled.
Just before serving, stir in ginger ale. Serve over ice.
Editor's Note: To make each broom, cut 1 green shoestring licorice into 1-in. lengths. Arrange around end of 1 pretzel rod to form broom bristles; tightly wrap bristles with 1 piece black shoestring licorice, tucking in ends to secure.