A few years back I went to a Tai Chi place in the town I lived. After the tour they put me in their meditation room. It was the most relaxed I've ever EVER been. I am trying to recreate the setting but cannot find one thing...

The lady put a round (maybe ovalish shaped) vibrating rock in each hand.

I have no clue what these rocks are called... I just know that I need them!! :) Anyone ever heard of something like this? I have no clue what to look for. After hours of searching I landed on this page... I hope someone here has some info! :) :) :)

What was causing the rocks to vibrate? Do you mean a physical vibration or an electrical/energetic vibration? At what frequency? A low hum? I would not know if you experienced a commercial product or something of natural origin. Were these actual rocks? Did they feel heavy or light? What size were they? Was there anything to indicate they had an opening inside? Did they have a pebble (smooth) or irregular surface?

Have you ever heard of the Ringing Cedars in Russia and the lady called "Anastasia"? When some of their evergreens out in the forest get over 500 years old some become so full of cosmic energy they start ringing.