Grilling supplies beat out fireworks and themed food as the most popular items for Fourth of July celebrations, according to Breaktime Media. This summer, Breaktime surveyed 618 respondents about the July 4 holiday. They answered questions ranging from purchase priorities to must-have products. About 40% of respondents said that grilling supplies are a must-have for their Independence Day celebrations. Fireworks and sparklers were tied for second at 20% with themed food and beverage.