Here's some more advertisements using comics motifs.
Dick Tracy advertisement for Franklin Bookman standup - Crown Books March 1998.
Spider-Man advertisement - Hardees May 1999 (in Kentucky, I think).
Thing from Fantastic Four - Dodge Caravan advertisement - NJ Turnpike September 1999.
Spider-Man - Got Milk Metrobus advertisement, August 1999, Washington, DC.
Disneyland ashtray.