In the 50's and 60's, many soda jerks, sidewalk vendors and fast food employees wore white paper hats as part of their uniforms. These hats have since been replaced by permanent, washable baseball caps bearing the company logo. Though rarely seen outside of retro-themed restaurants, the classic paper hat lives on in food service-inspired Halloween costumes. You can fold your own hot dog vendor hat from an 8 1/2 x 11-inch sheet of white paper or cardstock.
Turn the paper so the short end faces you. Fold the entire length of paper in a series of six 2-inch fan folds. You now have a 12-inch strip of folded paper.
Orient the strip so the long end is facing you. Fold one of the short ends two inches toward the center.
Take the other short end of the paper and tuck it inside the folded short end to hold it in place. The paper should now be a closed loop.
Puff out the two inside folds of the paper circle.