For years sterling silver mood rings have been associated with the groovy 1970s, but no more.
While Reynolds did not invent the mood ring, he contributed to the history of mood rings by selling millions of them.
As mentioned before, sterling silver mood rings change color to reflect changes in a person's body temperature.
Few fads from the "anything goes" era made a come back, but luckily 1970 mood rings did.
In today's rapidly changing world, mood rings serve two purposes.