"For sale: baby shoes, never worn" is the quintessential example of six-word flash fiction, but Ernest Hemingway did not invent it - there is no evidence of it, anyway. It doesn't matter: The concept has inspired interesting, intriguing, moving and funny six-word stories. Many were compiled by Smith Magazine:
Quite undecided, yet hopefully unsatisfied, generally.
I was and now I'm not.
What the hell. Might as well.
My life's a bunch of almosts.
Time to start over again, again.
To make a long story short...
Outcast. Picked last. Surprised them all.
Coulda, shoulda, woulda: a regretful life.
Unfortunately, there was no other way.
Like an angel. The fallen kind.
Used to add. Now I subtract.
Boy, if I had a hammer.
Check also Ernest Hemingway’s Six-Word Sequels