Bake and cool cookies. Use tip 2 and full-strength color flow icing to outline star; let dry. When completely dry, thin down color flow icing according to package directions and fill in entire star with tip 2; let dry overnight.
Use tip 2 and full-strength color flow icing to pipe lines, dots and swirl on cookie. Let dry for 1 hour. Mix Silver Pearl Dust with clear vanilla and use artist's brush to paint piped lines, dots and swirl. Use dry decorator brush to brush dry Silver Pearl Dust over entire cookie.