I made a very similar bracket long time ago. Works well. I used a threaded fish eye bolt and cut the eye so it was more like a hook and made a bracket that connected to the frame that it threaded into.

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Hope this picture comes in.

Last edited by 05tba; 03/09/2010 10:22 PM.
This is the newest pick I have of my bike http://3.bp.blogspot.com/_RDHb8TfoY4s/S5bJXqmUfQI/AAAAAAAAAi4/Dqok2f4-zio/s1600-h/DSCN8182.JPG