I discovered that the cylinder with which I made a hole in my beads in 3D Gamestudio, can also function as a kind of click system between the beads. It can be exactly made in the size needed for every different bead. Nice thing is that with the sphere beads it is so flexible that I can bend it into a round form too. For myself: lots of possibilities again to make my labyrinths (square and round) into a larger format and eventually into a ball game....
Made a four holes cylinder to be able to click the corners together....