Wired ran a feature in this month's magazine where they asked a group of writers and designers to write "Really Short Stories", 6 words or fewer. What I found interesting is that the best writers (in my opinion) are also the best really short story writers. For example, they open with Hemingway's original (not part of the writers, but the inspiration):

"For sale: baby shoes, never worn."

In general though, they range from the syntactically clever:

Steve ignores editor's word limit and
- Steven Meretzky

To the punny, self-referential:

Machine. Unexpectedly, I’d invented a time
- Alan Moore

To the unnerving:

The baby’s blood type? Human, mostly.
- Orson Scott Card

I thought I'd try my hand at it:

I crossed; their blinker was misleading

"Tim?" "Yeah?" "Don't you have twins?"

This just in I hate colons

The nachos ended my culinary career

If you'd like to join in the fun, add your own in the comments...