a lot of good suggestions for the lights of that era. I had one of those Wonder headlights, and it seemed pretty good for that time.
Of course, all of the lights of that era were utter junk compared to even the most modest LED lights of today.
On the plus side, car headlights were fairly worthless too, so they weren't blinding us too badly, and our youthful eyes still worked reasonably well in low light.

I appreciated seeing the Belt Beacon in the list. I used mine for quite a while, and recently reverse engineered it in order to make a tiny LED version. Kinda fun.
The original Belt Beacon guts:



and a modern equivalent that runs off of 3V and drives a 5mm red LED. The whole thing is maybe 25mm to 30mm long.



Steve in Peoria