card stock (or heavy weight paper)
Turn on the light box.
Trace around the stencil with the stylus
Turn the paper over.
Don't limit yourself just to brass stencils, you can use plastic or paper stencils or make your own using card stock and punches. Cut freeform shapes from any heavy paper and use as well.
Use a small crochet hook or inkless ball point pen instead of a stylus.
Rub the back of the paper with waxed paper to help the stylus glide better.