With thanks to Martian Blue Blue Blazer for the suggestion, I've just uploaded a new version of Fonts-Standard to the HeroMachine 3 alpha with the following two fonts:
The first should be good for doing one-letter Insignia if you move it up to the chest and turn color1 and color2 transparent. The other one is just a neat-looking font that I thought would be a great addition after seeing it on a number of Martian Blue's creations.