Tough assignment, OldSchool - at least it is for me. Went out this morning looking for something that might fit. IMO "still life" means it ought to have a significant human element. Too strong and it seems to become an abstract, industrial, editorial. Too weak and it seems to become a nature image (which I tend to shoot).
As Liz mentioned, I too can't seem to break the mental image of a bowl-of-fruit-on-a-table or a nude-silhouette-lying-next-to-a-bowl-of-fruit-near-a-table type image.
Anyway, I took a few more but these seem to almost fit. Interesting - thanks for the thought.