AstroMask Designer provides the user with a multitude of scaled Hartmann Masks which can be drawn on with the freeform editor to create your own designs. After completing the drawing process, the mask can be saved to the camera role, printed and cut out (instructions provided) or mailed to friends to share your creation.
Experimenting with masks is great family fun as its also educational sharing the basics of optics and can bring the family together under the starry night skys.