I have a directoy named 'laser_box' with two files in it.
It is a parametric model for a live hinge. Specify a few parameters in the OpenSCAD file and you get a live hinge that you can export to a dxf, and then read into your laser software.
A live hinge is a single piece of material, but cut such that it will move like a hinge.
They work well for making rounded boxes, but mostly the material doesn't work for that long if you use it as a hinge.
The files are dated Dec 7, 2016. So sometimes things stick around for a bit.