Chiral Mad 2 is looking for horror fiction "that disturbs the nonlinear fabric of reality". They're seeking stories of 1000 to 5000 words, payment is 5cents a word to 5000 words with a $250 max. The deadline is November or until filled. Please note that this is a charity anthology and all profits after production costs and author payments will go to Downs syndrome charities. You can find all the details here.
Hat tip to darkmarkets.com