No picture up yet, but this has me mighty intrigued! I remember some time ago it was discovered that driving your CombatQ over a magnet would make it react as though it was 'hit' by a regular shot.
But driving over a magnet was deemed possibly damaging to the CombatQ. Would be funny if the 'Magnet Battle Field' was indeed a bunch of magnets and that magnets weren't harmful after all.