A rotary method for forming a vaginal applicator. The method includes the steps of providing a forming mandrel, an applicator tube, and die then arranging the forming mandrel to be inside the applicator tube and then engaging the forming mandrel and the applicator tube with the die. The forming mandrel has a first sustaining ridge having a circumferential length and a second sustaining ridge having a circumferential length. The circumferential length of the first sustaining ridge is less than the circumferential length of the second sustaining ridge.