The Gadsden flag, that includes a rattlesnake and the phrase "Don't Tread on Me

https://louisarou189.vantagequill.com/posts/the-ultimate-guide-to-buying-historic-civil-war-flags-online-2

The Gadsden flag, providing a rattlesnake and the word "Don't Tread on Me," turned into followed through a few Confederate models as a image of resistance in opposition to perceived oppression.