President Donald Trump has promised a record-breaking fireworks display for the Fourth of July, billing it as the "LARGEST FIREWORKS SHOW IN HISTORY," but the funding source remains undisclosed. Fireworks experts estimate the 40-minute show, which aims to break the world record for shells used, could cost many millions of dollars. Individual fireworks could cost as much as $1,000 each, and even at a low estimate of $50 per shell, the 850,000 pyrotechnics planned would bring the total into the millions.