Simple harness for Nexus 5

My mom keeps her Nexus in her handbag and uses a lanyard to find it quickly when it rings. I made this simple harness so she can attach the lanyard without having to use a full phone case.

While the .scad and .stl files show a blank back, the photo shows that the holder can be customized with text. I only have a single extruder on my printer, but the text can be produced by switching the filament twice. The necessary code is present in the .scad file, as are the instructions. Bear in mind tha