I've seen this on other forums before, and I can't believe we haven't done it. I'll make a wish. The next person describes how that wish can go wrong, and makes a wish of their own. The next person describes how the last wish goes wrong, and makes a wish of their own, etc.
For example: Person A: I wish I had an apple. Person B: You get an apple but it has a worm in it. I wish I had a car. Person C: You have a car, but no gas. I wish... etc.