The original Sky Dancers, manufactured by Galoob from 1994-2000, were fun, fairy-like toys that launched in the air with a yank of a pull-cord. Unfortunately, the unpredictability of their flight path was the cause of their demise.
Sky Dancers were recalled in 2000 after causing nearly 150 injuries to kids and adults, though they were eventually re-released in 2005. If you have a Sky Dancer today, it might go for around $40-$100. Just make sure to wear your safety goggles if you decide to take it for a spin.