See photo below - includes stout pole but you supply your own oar.
The idea is to make sculling over the stern easier. See this article
http://www.duckworksbbs.com/gear/scullmatix/I've never managed to make it work properly but you may have better luck. £10 ono.
If you are interested, contact me by pm or (less reliably) by email: graham dot wickenden at btopenworld dot com.
