Colorado black license plate MA4HEM (MAYHEM?) vanity. If you're into MAYHEM (or MA4HEM) this is for you. The 2022 black plates are the absolute worst plates ever made in Colorado. Thankfully our book about the first 100 years of Colorado license plates was published well before these were made. They are supposed to be a tribute to white on black 1945 Colorado plates which were neither aluminum nor flat. Free shipping.