Battlestar Galactica Colonial Viper
Remember when you could launch a neat tiny rocket from a G.I. Joe or Star Wars toy without worrying about your baby brother's eye being popped out? Unfortunately, those days are long gone, thanks in large part to toys like the Battlestar Galactica Colonial Viper. The ship would launch a plastic missile, which, like any other spring-loaded weapon of mass devastation, might lodge in children's necks or strike them in the eyes. Unfortunately, in 1978, a four-year-old boy named Robert Jeffrey Warren died after mistakenly putting the toy's nose into his mouth and launching the missile down his throat. Mattel put warning stickers on all of their items capable of releasing lethal missiles after this event (and a few others reported to the Consumer Product Safety Commission).
Even the worst, most deadly assassin known to exist in any world, Boba Fett, was affected by the product safety stickers. The original Boba Fett toy was planned to come with a missile that could be fired from a pack on his back, however due to issues with the Battlestar Galactica line of toys, this feature was removed. Prototypes were the only versions of that toy that could fire a spring-loaded missile, making them highly uncommon and valuable collectibles.