I found a couple different sets in the past month at garage sales. The graphics on this box bring back memories.
The business end of the Jart
This set is by Franklin.
Their darts featured a blunted tip
All metal-tipped lawn darts were banned from sale in the United States in 1988 due to use by dumb kids like me. Granted, I'm sympathetic to the families of children who died as a result of the misuse of lawn darts, but it seems to me a strike in the head from a horse shoe, not to mention other childhood activities such as bicycling, football, climbing trees, handsprings, etc., could cause the same kind of damage with the same end result.
Lawn Darts are once again for sale in a non-lethal form featuring all plastic bodies and fat, rounded tips.