Not quite sure if it was the 8 o'clock or the Sunday News, but there used to be a competition that appeared weekly in the sports part. They showed a footie picture of a game that had previously been played, and the ball was removed, it was called "Spot the Ball" (I think). You marked the spot where you thought the ball was, sent it in and you could win cash if you were spot on.
Cheers
KHP