Should we try this corner? :)

[Nano]

Yeah, of course.

I was thinking more along the lines though of the penalty taker being the only one involved, rather than setting it up for a team-mate to run onto.

Again, the risk would be that you'd look a right pillock if it didn't come off

In that case no. The penalty taker can't touch the ball again until another player has touched it. This includes if it rebounds off the post/bar. The two-touch rule is why Zenden's penalty in the League Cup Final shouldn't have been allowed.