So. However you feel about planking, I feel like you have to admit that this is the best.
So my theory on planking, if you will allow me to do some comedic analysis for a moment, is that the funniest part is NOT the ludicrous or awkward location, though it can put a plank over the top (see photo above - the pony is EATING!). The funniest part is the head, which must be in line with the spine and therefore force the face downwards in a position that otherwise doesn't really happen in life. Unless maybe you are dead and have undergone rigor mortis, in which case you're not in life anyway, so my theory holds.
The arms are funny too.