We haven't had a forum game for a while so I thought I'd try one.
Let me explain.
First, I post a picture of anything at all. Lets say, this rabbit:
Now, the next person to post in this thread has to post a picture of a thing that could beat a rabbit.
After that, the person that posts has to post a picture of a thing that could beat whatever it was in the picture in the post after this one.
And so on and so forth.
EDIT: It doesn't have to be another animal.