Below are the four “nodes” that I made. 2 of them (right) were made on paper, and the others on fabric. The one on the top left made use of the embroidery technique.

The four connectors that I made (image below) includes: one pin probes, one small clip connector, one long metallic clip connector and one metal snap connector.

The small clip connector (second from left to right) proved to be the most challenging to make but also turned out to be the most beautiful.

And they all worked!