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

https://knoxqmjq028.quillnesty.com/posts/the-evolution-of-civil-war-flags-designs-and-meanings-2

The Gadsden flag, featuring a rattlesnake and the phrase "Don't Tread on Me," turned into adopted by means of some Confederate items as a symbol of resistance towards perceived oppression.