What is the error on the Bugs Bunny stamps?

The error on the Bugs Bunny stamps, issued by the U.S. Postal Service in 2007, occurs due to a misalignment during the printing process, which resulted in Bugs Bunny appearing to hold a carrot that was incorrectly positioned. This error led to a limited number of stamps being produced with the misprint, making them highly sought after by collectors. The stamps have become a notable example of printing errors in philately.