Quote Originally Posted by sirrahved
I had one when I was in middle school in the late nineties. EVERY DAY that winter when I waited for the bus outside, it was black! Must be going to school put me in a bad mood...

It may have some sort of accuracy if you were constantly the same temperature. Every time you are exposed to warm or cold, though, it affects the ring.

Yeah in our display case at work a lady made some mood rings.. when we would come in in the morning they would be yellow but throughout the day as the store heated up and the lights were shining on it... it got darker and darker. It might have been the other way around actually...d ark to light... can't remember now. But they are neat none the less.... hard to co ordinate outfits with a constantly changing ring though HAHAHA