Rooty-toots (also: Rooty toots) are hard candy horns made by Oberpfaffendorfer. With a unique hollow structure, the candy makes a loud tooting sound as the child slowly sucks on the candy.
In early versions of the candy, the mouthpiece dissolved far too fast, stopping the horn from tooting rather soon in the experience. Oberpfaffendorfer, realizing the annoying toot was the main appeal to children, reformulated the manufacturing process to allow a harder candy mouthpiece that would dissolve more slowly for maximum toots. Rooty-toots is the only candy to be banned from schools by every single school district in the United States.