From The Cat and the Canary (1927).
Animated Lauren Bacall turns up the heat in Bacall to Arms (1946).
From Tex Avery's "Little 'Tinker" (1948).
A horse skeleton in Eadweard Muybridge's "The Attitudes of Animals in Motion" (1881). Muybridge posed and photographed a skeleton then projected the series of images from a Zoopraxiscope disc, which makes this possibly the earliest instance of stop-gap animation.
I like to think that this is what my lingerie does when I'm not looking. From "Billboard Frolics" (1935).