Customization Instructions:

1. Install OpenSCAD
2. Get the latest version of the dogtag and qr code from https://github.com/X-Illuminati/glyphinator
3. Find dogtag.scad in the example-projects/dogtag/ directory and open it in OpenSCAD.
4. Provide customized values for the variables in the "Modify these parameters" section. See the usage notes at the top of the file for hints.
5. Set mark_space_select=0 before rendering and exporting the STL.
6. After printing, fill in the holes with a dark epoxy or similar material.

Dualstruders / Multimaterial: I have no idea if this will actually print in a combined form. May need to scale up feature size to get reasonable performance. I suspect the result will still include a wipe tower that is 3 times the size of the actual model. Create one model with mark_space_select=0 and a second model with mark_space_select=1 and combine them in your slicer software.