This very impressive 'Perpetual Motion' machine, in the youtube link below
YOUTUBE LINK
https://www.youtube.com/watch?v=_gAchuS8SyU
could be modified at the 'points' 'A' or 'B' marked in the diagram below, to function successfully.
It is claimed that that there is an Electro-magnet hidden at point 'A', in the diagram below.
It may be possible to replace the hidden Electro-magnet at point 'A', in the diagram below, with some type of Permanent-Magnet design or device ( or even with a smaller version of this actual device ).
THE POINT COULD BE THAT COMBINING THE TWO FORCES, GRAVITY AND MAGNETISM, COULD 'BREAK THE SYMMETRY' USUALLY PRESENT IN DEVICES RELYING ON JUST GRAVITY OR MAGNETISM
YES, big YES! Not about the machine ,but I'm sure that combining magnetism and gravity will allow construction of various self-running machines.