I have the Simply Rugged pancake holster. It is well made of heavy leather, but not molded to the gun. It uses belt tension for retention. The result is that it seems to "creak" a bit as I move around. I haven't worn it much, maybe that will change.
I have been considering the "Merlin" fanny pack. I understand the Governor fits (barely), and that is probably the only way to conceal carry this large revolver. Not that fanny packs make a great fashion statement, but would make a good setup for road trips. Anybody have one?