Hey s.d.,
Sorry for the low-res photo...trying to stay under the GS 195K limit. I actually hung them from the ceiling with ordinary 16 gauge hobby wire so I could keep them off the walls 4+ inches.
I'll see if I can describe this effectively...I ran a 1 1/4" drywall screw into the end-grain of both 1x2 spacers with a #10 flat washer and left it out a little (very important: run the screw backwards for a few seconds to "drill out" the fabric first so it doesn't bunch-up when you run the screw in). I then snuck the end of the wire (pre-measured) through the hole in the washer. When you crank down on the screw, the wire becomes trapped between the head of the screw and the washer. I did the same thing at the celing after first installing those "new" plastic drill-in drywall anchors (mine were rated for 32 lbs each and the panels barely weigh 10). Two per panel gets it done just fine. Enlist another set of hands to support the traps while you set the screws and plumb everything up.
That's pretty much it!