Discovered by @megmantis, this Oklahoma law, enacted in 1919 and amended as late as 1999:
Any person in this state, who shall carry or cause to be carried, or publicly display any red flag or other emblem or banner, indicating disloyalty to the Government of the United States or a belief in anarchy or other political doctrines or beliefs, whose objects are either the disruption or destruction of organized government, or the defiance of the laws of the United States or of the State of Oklahoma, shall be deemed guilty of a felony, and upon conviction shall be punished by imprisonment in the Penitentiary of the State of Oklahoma for a term not exceeding ten (10) years, or by a fine not exceeding One Thousand Dollars ($1,000.00) or by both such imprisonment and fine.
I mean, my disdain for anarchists has no floor, but making carrying a pro-anarchist flag a state offense? Wow. I know this is a Red Scare law, not atypical for the country. And I don’t know how many other states might still have something like this on the books. But updated in 1999? Again, wow. Moreover, who doubts many lawmakers in the state of Oklahoma would happily use a statute like this against, say, Occupy Wall Street protestors who might make vague statements about anarchy?