They had an important background in architecture, art, industrial design, and maybe all the visual arts at their time, there is lot of work behind those characters in all the named fields.
Definitely the images below are the most famous pieces of art they gave to the industrial and furniture design.
molded plastic arm chair
Eames lounge chair
molded plywood acronym chair
molded plastic rocking chair
Thnks to Brickhouse, Convoy, Herman Miller.