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

https://troynfmn638.huicopper.com/the-legacy-of-civil-war-flags-symbolism-and-design-throughout-history

The Gadsden flag, that includes a rattlesnake and the word "Don't Tread on Me," was once adopted by way of a few Confederate sets as a image of resistance against perceived oppression.