Spark plug spanner

[Daddy Dom]

After the "what tools do you carry" thread a while back I started looking for a plug spanner for the rear cylinder. I currently carry 4 bits of my socket set so I can get round the corners.
Is there a purpose-built (hinged/gimballed?) tool anyone knows about that I can use instead?
Cheers,
Dom

[3potjohn]

After some messing with a box spanner idea I have a small conventional plug spanner with a t handle and a jointed end.Only just wedges in on top of my tools though.But none have come out in anger.Ha!
I have got a flexible extension made up like a 5mm thick bowden cable but it's not got the right ends on it.