Lawn darts, or Jarts, were all the rage in the 1980s. With a few Jarts, a few friends, and a few beers, American backyard-barbecue-goers would lay down small plastic hoops as targets and play a game not entirely unlike horseshoes. Each player would toss the darts into the air, attempting to arc them into the opposite ring. While the darts, which had a metal spike and plastic fins on the sides for flight stability, were not especially sharp, they were weighted. They picked up enough speed to come sailing
Source: How One Grieving Father Got Lawn Darts Banned | Mental Floss
