Gathering Storm is a new market seeking fiction under 2000 words and open to all genres. All stories must fit their themes and use the phrase in the story in some way. I'm a bit late with this one as the deadline for all their listed themes is January 31, 2017. Here are the current themes:
1. Break a leg.
2. Knock on wood.
3. People who live in glass house, shouldn't throw stones.
4. Revenge is a dish best served cold.
I'm linking to their Submittable page as that is where the themes are listed. Payment is $25.