Prepare a waxed paper covered cake board. Use thinned white Royal Icing and a cut parchment bag to pipe an assortment of puddle dots from 1/8 to 1/2 in. diameter. Let dry. Use a decorator brush and dust dots with White Pearl Dust. Use full-strength white Royal Icing and tip 2 to pipe lines on cookies. Attach puddle dots, secure with additional icing if necessary.