An ever-growing selection of films from the era can be found here.
A look at the hues and fashions of a 1938 Technicolor movie, here.
Color and BW mag ads start here. Forgotten Hooch, concerning liquor ads of the 30s, is here. You'll also find some the Fiche Tank site, here.
Selections from the Sears catalog of 1934. (Warning: over 100 pages.) A brochure showcasing Dream Kitchens. Then enjoy this spousal quiz from the early 30s, here. Or some 30s Disney title cards, here. Want to see 1937 in color? Here.