I am *not* the seller or affiliated in any way with the seller. I just thought this might be of interest...
http://www.ebay.com/itm/330882627623edit: march 2013 (new link) item available again.
regards,
michael
I actually had a bunch of cables made up... the main requirement in a mono soundbox/soundboard for the keyboard etc. The cables cost about $50 each to have professionally made.