Extreme Lying Down.
Rules: lie down somewhere, arms by sides, feet pointing at the floor.
The more improbable the place, the better. And getting someone to take a photo of it is better still. There's a whole Facebook thing devoted to it (apparently).
And that's it. I reckon I could be good at this. I'm off training right now. While you wait for me to come back (it may be a long time), here are some pictures to get you in the mood.