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

https://troynfmn638.huicopper.com/reenactors-and-their-favorite-civil-war-flags-a-community-perspective-1

The Gadsden flag, offering a rattlesnake and the word "Don't Tread on Me," become adopted with the aid of a few Confederate contraptions as a symbol of resistance towards perceived oppression.