Fads tend to revive every 17 years or so.... What was hot 17 years ago?

In honor of Joe Cossman, I'd like to revive a topic....

Last year (2001) Don Alm mentioned that in a Joe Cossman seminar he attended, Joe said that fads tend to repeat themselves every 17 years or so....

The fad tends to get "updated".... Joe Cossman took the ant farm - which used to be made of glass, and updated it (and revived it) by making it out of plastic. He revived the spud gun too !

The more recent "scooter craze" was just an updated version of old scooters - instead of big fat rubber tires, the new scooters were "updated" with a sleek new look to become "hot" again!

17 years ago was the end of 1985. What was hot back then? What could become "hot" again (with the right "updating") ? :)

- Dien