Has an AFL game ever ended 68-56?
Exactly once. On June 30, 1928, Melbourne beat Footscray 68-56, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 68-56 in league history.
That makes 68-56 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 69-56 has happened 5 times and 68-57 has happened 3 times.