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

https://cruzbuxy751.solsticebrief.com/posts/the-art-of-displaying-your-civil-war-flag-collection-4

The Gadsden flag, providing a rattlesnake and the word "Don't Tread on Me," become adopted via a few Confederate models as a symbol of resistance in opposition to perceived oppression.