Cut twenty-four 2-inch squares of wax paper. Working with one at a time, hold the piping bag at a 45-degree angle to the paper with the tip's wide end pointed away and slightly to the left. Move the tip 1/8 inch forward and back again while pivoting to the right to create a ruffled petal. Make four or five petals per flower, overlapping each petal slightly and rotating the paper as you pipe. Switch to a small plain round tip; pipe a dot in the center of each bloom. Let flowers dry overnight. Carefully remove flowers from paper with an offset spatula.