All Star Flags has a full line of Gadsden Flags for sale in several sizes. These are the popular "Don't Tread on Me" flag with the coiled snake.
The history of the Gadsden flag goes back to the American Revolution. The Gadsden flag is associated with Christopher Gadsden, who was a delegate to the Second Continental Congress. He presented a flag to the Provincial Congress of South Carolina on Friday, February 9, 1776. The journal of the South Carolina congress describes the flag as "an elegant standard, such as is said to be used by the commander-in-chief of the American navy; being a yellow field, with a lively representation of a rattlesnake in the middle, in the attitude of going to strike, and these words underneath, 'DONT TREAD ON ME!' "
Two other common historical flags feature the snake and Don't Tread on Me slogan. The First Navy Jack flag has a red and white striped horizontal background with an outstretched (not coiled) snake and the Don't Tread on Me text. The Culpeper Flag has a white background with the coiled snake and Don't Tread on Me. The flag also features the saying Liberty or Death.
All Star Flags has all of these Don't Tread On Me Flags for sale below. You can buy a Gadsden flag here in several different sizes.