Portuguese man o' war
The Atlantic Portuguese man o' war lives at the surface of the ocean. The gas-filled bladder, or pneumatophore, remains at the surface, while the remainder is submerged. As the Portuguese man o' war has no means of propulsion, they move according to the winds, currents, and tides. Although they are most commonly found in the open ocean in tropical and subtropical regions, they have been found as far north as the Bay of Fundy, Cape Breton and the Hebrides.
Tik-Tok (Oz)
Tik-Tok (sometimes spelled Tiktok) is a round-bodied mechanical man made of copper, that runs on clockwork springs which periodically need to be wound, like a wind-up toy or mechanical clock. He has separate windings for thought, action, and speech. Tik-Tok is unable to wind any of them up himself. When his works run down, he becomes frozen or mute or, for one memorable moment in "The Road to Oz", continues to speak but utters gibberish. When he speaks, only his teeth move. His knees and elbows are described as resembling those in a knight's suit of armor. Being a machine, he is quite strong, allowing him to single-handedly overpower a whole horde of Wheelers without much difficulty, as demonstrated in a scene of the 1985 movie, "Return to Oz".