US Scareways has an aircraft that I frequently see at DCA with all the logos of their predecessors on it; I've also seen their airplanes with the former PSA livery (including the smile below the nose), as well as Allegheny (I'm sure they have a Piedmont plane, but I haven't seen it); I like their sports team paint jobs, particularly the Steelers plane (which seems to be at DCA every day) and the Arizona Cardinals plane which I saw on my last trip to PHX which looked particularly sharp.

I also like the state flag-based liveries that WN flies, such as Maryland One and New Mexico One (a WN FA told me that they privately called it the "Big Banana"). I've seen their Texas and California planes too. America West used to have aircraft resembling the Nevada and Ohio state flags.

As far as PanAm is concerned, there is a 727 out there with their classic livery, but it is owned by a railroad company which bought the PanAm trademarks (these are used on its trains, which roll in the state of Maine).

http://www.panamrailways.com/index.p...f8fdns8ptn7n35