Just take Judge's Desktop Picture sysstats config, and edit it so that the object is square (i set mine to the size that my dock zooms to, 192X192). Hide the controls and the frame (they don't look right resized), and then enter the directory where the pictures are at into the config dialog (instead of dropping them onto the object), and then you have what I was looking for. Judge also has the delay time set quite high by default (I don't recall what it was, but at least ten minutes), while that is fine, it made it hard to tell if my changes worked. I ended up resetting the time to 30 seconds, but that's up to individual taste. Modified in these ways, Judge's object works great with OD.