In this video I use Inkscape.org. This is a free vector graphics program that can be used to make your own scroll saw patterns.
Functions used the most in Inkscape are:
control+D (duplicate), control+shift+f (fill and stroke)
control+shift+A (align and distribute) view-grid, and others.
It's best if you have some knowledge of Inkscape to create a pattern like this. I am showing how it's possible to design in Inkscape. Enjoy!!!