Felix encounters a giant when he rides a smoke ring to the clouds in “Land O’Fancy” (1926). The giant isn’t happy Felix has stolen his bottle of milk. Being a silent film, he can express his words only one way. They have to appear on the screen.
Felix indulges in that great trick of silent animation. Two drawings are alternated to express fear, one with the setting in wavy lines. Carlo Vinci was still doing this at Hanna-Barbera in the early ‘60s.
There are no credits on the cartoon, except for studio owner Pat Sullivan. Who animated this is up for speculation.