I drew the outlines of the front and back on newsprint, then drew the Alabama Chanin Magdalena stencil, modifying it to how I wanted it to be on my shirt. Then I covered the newsprint with mactac and cut out the shapes to make a stencil. This only works because I was brush dabbing the paint on. It wouldn't work if I was spraying it on.
Here are the pieces after painting them:
Here, the stitching is done (I know, you can hardly see it):
And here, I have done the cutting:
The finished piece.