Bart, and his knowing smile, are up to no good on these Bart Simpson Stamp Cufflinks. Made from authentic U.S. Postal Service Stamps, these cufflinks are perfect for both fans of The Simpsons and stamp collectors alike. Bart simpson is a fictional main character in the animated television series The Simpsons and part of the eponymous family and this stamp cufflinks is a best gift for bart simpson fans.