Has an AFL game ever ended 90-29?
Exactly once. On August 22, 1953, Footscray beat St Kilda 90-29, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 90-29 in league history.
That makes 90-29 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 91-29 has happened 3 times and 90-30 has happened 1 times.