Rockets have long been a cornerstone of firework displays, cherished by enthusiasts for their dramatic launches and dazzling bursts. Their popularity remains unparalleled, and the mere mention of rockets often ignites excitement when browsing for fireworks. While most rockets conform to a traditional design—a long stick for stability, a motor to provide thrust, and a cone-shaped head housing the effects—there are exceptions that put a fresh spin on the classic formula.One standout example is the "shellhead rocket" or "ballhead rocket," affectionately nicknamed “onion on a stick” due to its distinctive shape. These rockets break away from the usual cone-headed design, replacing the pointed tip with a rounded, bulbous head, typically crafted from papier-mâché. This unique design closely resembles the appearance of professional mortar shells, often seen in large-scale pyrotechnic displays, making shellhead rockets a striking addition to any collection.At first glance, the shellhead rocket’s appearance is its most defining feature. The spherical head gives it a robust and imposing presence, setting it apart from more conventional designs.Despite their unconventional appearance, shellhead rockets function much like traditional rockets. They are launched using a standard rocket launch tube, where the motor ignites and propels the rocket skywards. Once airborne, the head releases its payload in a dramatic burst of light, colour, and sound.So, the next time you’re shopping for rockets, consider adding a “shellhead” to your line-up. It might just become the star of your show—and a talking point for your audience.