Suggestions?

I need to come up with a contest. There is a link at the bottom of my page to a fantastic, little known, book called Jackson and Central. It is an anthology that really does have in it something for everyone. I probably wouldn't know anything about it except that I am one of the contributors.

While I have to admit, I love the two stories I have in there. I've even been approached about turning one of them into a short film (not that I have written the screenplay yet- refer to the weeks of blogs about deaths of parents and grieving for explanation of what I have been doing instead). Although when I look back at them now I see so much I would change but I don't think my stories are the best ones. So I want to offer to send out ONE copy, completely free, including shipping to anyone that can .......what? Or the first person that....?

I plan to come up with the contest by the end of this week but would love some feedback on what you have seen work other places.