The keychain was created using inkscape to obtain the SVG file. Each polygon id is named using this convention: name_NN_mm, where NN is the height in millimeters.
Then you can export it to an openscad file a using the following plugin for inkscape:
https://github.com/l0b0/paths2openscad.git
With openscad, just press F5 to compile, F6 to render and export it to STL.
You can customize engraving your name in the back! Just open the .scad file and update your name.
More models to come!