fabric bag exchange-station light (edge connectors, customizable)

Just half a year before I puzzled over the problem how you could tell the internal angle of a n-corner-shape by how the shape corner touches an outer circle. :-) (I intended to solve it in my head, just for the fun, not by looking in wikipedia) Then I heard of some people who want to save ressources by swaping fabric bags in stores, makerspaces etc. (You may want to visit their website at https://taschenstation.de/ ) To do so, they made a hexagon object for 3D-print in which you can place a used bag for other people. More of these hexagon object can be connect honeycomb-like for more bags. Sadly they constructed the whole hexagon object to print. This ist where this light-version comes up. You can print only the dge-Connectors and use plates (of used plastics for outdoors or just cardboard for indoors) to built an exchange-station for fabric bags in light-version.