So far I have got-
Gas manifold for 6 kegs using ball locks to gas lines to kegs (ball locks on both sides)
Or as a cleaning device or cleaning keg lines-
Hook up 5 black ball locks connected to you draft system (or six if you replace the one post that is gas) and run line cleaning solution through them.
I would probably put the cleaner in a bucket and use my harbor freight pump to pump through the lines and then use some cheap tubing on each faucet to return the solution back to the bucket.
I'll use this myself for this If it doesn't sell, like I said before I'm just saving cash for my 7 tap system that's going to be $$$