This one should be quite the challenge, but you might just have lots of fun with it, too.
On the background, create a mirror image. You can use anything you want, though it probably works best with a stamped image.
Here's DoBea's card to give you an idea of what I'm talking about
This is fabulous and should really get those creative juices flowing!
We're not going to be super strict with this one, so give it a try and link up those cards here.