ONE TWEETY BUGS BUNNY US STAMP U.S. MAIL HAT a brand new with tag embroidered licensed Looney Tunes hats. These hats were for sale at the United States Post office in 1997. Tag says Looney Tunes Stamp Collection , made in USA , copyright 1997 Warner Bros. and United States Postal Service. Excellent quality hats with Tweety Bird and Bugs Bunny embroidered. These are one size fits all , fully adjustable