Mobius, I just wanted to make you aware of an advert I saw on TV last night for Danone Shape Yoghurt. It was in the UK though so you may not have it your side of the pond.
It features lots of lovely ladies doing all sorts of fairly bendy flexi yoga type stuff and finishes with a woman holding the pot of yoghurt between the two palms of her hands, in a full reverse prayer position. (obviously bar the gap the size of the youghurt pot, but she blatantly wasn't struggling, so with a bit of a stretch the full reverse prayer was easily achievable!)
Now I'm not saying that I know anyone who can do it or anything, far from it. But just be warned, your challenge can be done. I reckon your safe for a while more though.