The ice cream truck became an everyday summer icon thanks to Harry Burt of Youngstown, Ohio. Burt, the creator of the Good Humor bar, wanted a way to bring his treats directly to neighborhoods. He outfitted 12 trucks with refrigeration and bells to alert children. The jingles played by ice cream trucks—like 'The Entertainer' or 'Turkey in the Straw'—were originally chosen because they were out-of-copyright folk songs that the primitive music boxes could play without skipping. The industry boomed after World War II when car ownership increased and suburban neighborhoods expanded. Today, the ice cream truck survives as a nostalgic remnant of mobile vending, though it now competes with modern food delivery apps.