This picture is quit old although it is possible that I haven't posted it yet:
OctagonalEdges.jpg [ 355.79 KiB | Viewed 642 times ]
I hope everyone sees what these variants have in common.
Lately I made some more:
OctagonalEdges2.JPG [ 328.81 KiB | Viewed 642 times ]
Their names (or signatures) are: (starting right going clockwise)
There are 17 variants are missing to make this series complete but I am not sure if they are worth the effort.