I still have a set.
If I get time today I'll post a pic of it and a thunderbird - kind of the yang and yang of the entertainment world.
And for the record - yes, the lawn darts are my set from when I was a kid. My brother and I would set the rings about 50 feet apart and play both offense (throwing the dart at the opponents ring) and defense (trying to block the dart from landing in the ring). This, although dangerous, was entirely too structured for two teenage boys. The games usually quickly evolved into "Dodge Dart" (not the car) where we would throw the darts at each other. If it hit you, you were out (maybe for a long time) but if you caught it the other guy was out. We both drew blood many times, but we're still alive. Stupid, yes, but it was a great eye/hand coordination excercise and even helped us increase our pain tolerance thresholds. All part of growing up back in the 60's and 70's.