Lolly Lolly Lolly Get Your Adverbs Here, Phil Kimmelman, 1974

Schoolhouse Rock, 1974. Written and Performed by Bob Dourough.

Duck Amuck, Chuck Jones, 1953

One of the best Chuck Jones cartoons evar.

Munro, Gene Deitch and Jules Feiffer, 1961

Oscar winning short about Munro, who is four.

excerpt from It's a Bird, Charley Bowers, 1930

I tried to find the whole thing for you, but I couldn't.

Muto, Blu, 2008

The Italian animator and graffiti artist who calls himself Blu is an interesting fellow. He is best known for making animation by painting on walls. Muto was made in Buenos Aires and Balden, and includes the sequence Fantoche.

Les Escargots, Rene Laloux and Roland Topor, 1965

Rene Laloux and Roland Topor are best known as the creators of the 1973 cult animated feature Fantastic Planet.
Roland Topor was also a founding member of the Panic Movement with Alejandro Jodoworsky, and an actor who appeared in, among other things, Werner Herzog's Nosferatu.

The Mighty Heroes: The Junker, Ralph Bakshi/Terrytoons, !966

As I understand it, Terrytoons was fairly notorious for wanting to crank out animation as cheaply, crappily and quickly as possible. Ralph Bakshi directed this series when he was a young man of 27. It bears the early marks of his thoughtful television character design, which was styled specifically to work well with limited animation.