[Alexandre Thiery] has come up with the clever idea to simply clamp the strings between two Lego blocks. This certainly paves the way for other more complicated Lego-based tensegrity structures ...

You could also stop there and just clamp your PCBs in the plastic jaws, but [Paul] adorned the jaws with swiveling arms made from LEGO Technic pieces, of all things. Rubber grommets slipped onto ...