Christmas Light Cookies

In a large bowl, using an electric mixer set on medium speed, beat the butter and sugar until light and fluffy. Beat in egg, vanilla, and lemon peel. On low speed, gradually beat in the flour until blended. Shape dough into a disk and then wrap in plastic wrap. Chill for one hour. Preheat oven to 350° and lightly grease two baking sheets. On a floured surface, using a floured rolling pin, roll dough out to ⅛ inch thickness. Using the template, cut out the cookies. Place cookies , 1 inch apart, on the prepared baking sheets. Make a hole in the bottom of each cookie (in the end of the light bulb) with the straw. Bake cookies in batches, until golden, about 5-8 minutes a batch. Transfer cookies to wire racks and cool completely. For the Icing : beat together confectioners' sugar and milk until smooth. Divide mixture evenly among the three small bowls, reserving about 1 cup of the mixture for the white icing. Add food coloring to each bowl to make desired colors (remember: green and yellow make blue!). Spread the different colored icings on the cookies on the bulb, let stand until set. Using a pastry bag and a small, round tip, pipe the white icing "threads" on the bottom of each bulb. Let stand until set. Thread the licorice "wire" through the hole made with the straw and string together!