Here's what the compressor looks like when the clutch plate falls off. The pulley is still on because it's pressed on (I think) and retained by c-clips.
http://jmr302.com/P5/ac_clutch_gone.jpg
Here's what it should look like normally.
http://jmr302.com/P5/ac_clutch_normal.jpg
Here's what the inside surface of my clutch plate looks like. I'm not sure if the lining material is on the plate or pulley side. Note the splined portion in the center that mates with the compressor shaft.
http://jmr302.com/P5/clutch_inside.jpg
Here's what the outside of the clutch plate looks like.
http://jmr302.com/P5/clutch_outside.jpg
Interestingly enough, I found a bolt in my collection that fit and put everything back together, metal on metal. It works fine at idle but I wonder if it won't slip at highway speeds on a hot day. We'll find out tomorrow.