Has an AFL game ever ended 88-10?
Exactly once. On May 23, 1903, Carlton beat St Kilda 88-10, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 88-10 in league history.
That makes 88-10 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 89-10 has happened never and 88-11 has happened never.