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

https://landenfwmq676.alderbrief.com/posts/from-cotton-to-canvas-the-materials-behind-civil-war-flags-4

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