I recently started posting limerick prompts (I call them Limerick-Offs) on a regular basis, roughly two or three times a week. You can always find my latest Limerick-Off here. And for those who are active on Facebook, I'm also doing the Limerick-Offs on my Facebook page. As a matter of fact, it's really taken off on Facebook, with a good number of regular participants. The way they work is I post a limerick and encourage prompt participants to write their own limerick using the same first line. I very much hope you'll participate on my blog and/or on Facebook.