I made my own from some straight 1/2 inch rods from the local hardware store, painted em black. They had to be heated and twisted to fit properly. Was pretty easy with a torch to get them hot enough to bend as needed.
Look in my gallery, not the best picture but mine comes out from under my seat and bolts to the fender and the fender doubler underneath. (Very sturdy) and does not have all those extra rails. I did have to cut some of the pillion seat plastic where the rods come out from, but all in all, an easy mod and this was about as subtle as I could come up with.
It's been on the bike for over 2 years and works pretty good. I bought the pad for 50 bucks from a HD shop in fremont....
One day I would like to get them powder coated so they don't chip like rattle can paint does.