Earlier this week, we were pleased to find the very first drawing of the Teenage Mutant Ninja Turtles. Seeing these earliest forms of Leonardo, Raphael, Michelangelo, and Donatello piqued our curiosity and led us on a hunt for early sketches of our other favorite cartoons. As you’d expect, these first renderings are somewhat strange to behold — faces seem distorted, eyes seem too big, and familiar characters have a foreign air. Needless to say, they’re all pretty fun. Click through to check out the debut sketches of Toy Story, Mickey Mouse, The Simpsons, and more.

Mickey Mouse, 1928 [via]

Woody and Buzz, Toy Story [via]

The Simpsons, 1987 [via]

Mufasa and Simba, The Lion King [via]

The Smurfs, 1960 [via]

Dumbo, 1941 [via]

Finding Nemo [via]

Sebastian, The Little Mermaid [via]

Yogi Bear [via]

Jack Skellington, The Nightmare Before Christmas [via]

Snagglepuss [via]