Bruce Zoldan, the president of Phantom Fireworks, which has 55 stores across the country, would not confirm exactly what was purchased, or when, so as not to compromise the investigation.

CNN: By the CNN Wire Staff

William Weimer, a vice president at Phantom Fireworks, said none of the three products pictured in the latest criminal complaints came from his company's outlets, so it is likely the alleged bombers also purchased pyrotechnic devices from rivals' retail stores.

WSJ: Latest Boston Charges Point to Fireworks Link

"The neat, gee-whiz part is thinking about what would the vehicle itself look like, " said Dick Paul, a vice president with Phantom Works, Boeing's research and development arm.

BBC: NEWS | Science/Nature | Flying cars swoop to the rescue