Hunnicutt & Pierce
Potter & Hoolihan
Klinger & Winchester
Radar & Mulcahy
the Mash glass shown on the main www.pgcaglassclub.com web page (Klinger & Winchester), in the glasses rotation, is not as far as I know more "rare" than the others, in fact it used to be the Hot Lips glass I think that was hardest to find. Someone discovered a large stash of these and has sold loads of sets on Ebay, thus lowering the price a lot. These were promo glasses for the glass company that made them, and had with a set of 4 a little pill box with info about the set.
Here is the URL for the glasses in the main page glass rotation.
The title that comes up on that page is incorrect, I need to have some of the PGCA interns fix that.