Below are the blank stencils with the same brand color numbers as  shown in the tutorials. Click on the image to enlarge, rightclick on the enlarged image to save. When printing I advise you to print on thicker printing paper with a slight grain or to draw the actual exercises on pastelmat and then cut those out and stick those on the printed paper

Light skin tones stencil
Medium skin tones stencil
Dark skin tones stencil
Comparing brands swatch stencil