UFO Publishing is seeking submissions for their second annual anthology "Unidentified Funny Objects". They're looking for humorous spec-fiction stories of 500 to 6000 words. Payment is 5cents a word and the reading period is May 1 to 31. You can find all the details for submitting here. There are also stories available on the site so you can get a feel for what they're looking for. This will be funded by Kickstarter.
Hat tip to the Sci-fi Signal!