I measured the length of the
exposed rod when the window was at two different levels that
I thought would be most used.
I then cut a flat piece of
aluminum the same width as the largest rod distance and then
tapered the width down at the other end to the width of the
smaller rod distance. A wide end and a narrow end.
I then bent the two ends into
a "U" shape around a bolt that had the same diameter
as the rod. A little de-burring with the wire wheel and....a
piece of art!
(note the sexy background).