Remember mood rings?

During the 1970’s Mood rings were a huge craze.

In 1975, two inventors started making rings with a crystal that changes color with temperature. Supposedly you could tell the mood of the person by looking at the color of their ring. It beat “What’s your sign?” to a certain degree as a conversation starter.  They made great Christmas and Birthday gifts.

Image By Alkivar – Self-photographed, Public Domain,

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