Well this one was a challenge for me! Mr T over at Creative Tuesdays certainly made me scratch my head on this one. I eventually came up with the idea of a compass, as my mind could not latch onto anything else, absolutely nothing.
Here's hoping that the next challenge will be a little easier, but then what is the idea of this little co-op but to scratch the old grey cells. See how others have fared, the link is above.