Saw one of these and decided to try making one. Instead of using a cabled weight decided to use a thingiverse object as the weight. In this case I remixed a Mickey Mouse box to an appropriate height https://www.thingiverse.com/thing:3113563.
Consist of two parts the napkin platform and the feet. Will need to glue the feet on. For PLA I use an acrylic glue that works fantastic. Can also use super glue or epoxy.
I have included OpenSCAD files I used to create the objects, the STL files and the gcode files.