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

https://mariohczd240.nexorafield.com/posts/a-collector-s-dream-finding-historic-civil-war-flags-for-sale

The Gadsden flag, that includes a rattlesnake and the word "Don't Tread on Me," turned into followed via some Confederate units as a image of resistance against perceived oppression.