Anti-vibration balls for hifi racks

You can get clean dryed sand from fish, fish tank stores, its safe for fishies so safe for you. various grains as well. Its probably the easiest place to get clean dryed sand in bulk that has no bug eggs etc.  

Lots of good ideas and helpful recommendations! Thank you. I think I could also order stainless steel ball bearings from Amazon. Preferrably without sand, bug eggs, or piranhas. I don't don't trust that Bezos fella, so maybe a fish tank store is the place to go.

I'm confident Jean Nantius the individual who stole most to the ideas for Plinth Building from the Lenco Heaven Website, to generate the ideas to become a commercial entity producing plinths, was an advocate of SS Ball potted in a compound embedded into a TT's Plinth.    

I use a pro kitchen stainless steel table with six inch rubber wheels. It's mass is all I need. Plus I can move it for dusting. 

Silica (quartz) sand, as used in sandblasting, is what used to be recommended.

The only drawback is that the dust coming off of it is unhealthy - so fill items outside and wear a mask.

Once contained in a rack or stand it is no longer a health hazard.

If stored inside a lumber yard building it should already be dry (avoid sand stored outside on pallets).

Lead shot is difficult to dispose of properly, fortunately my auto mechanic accepted it for recycling.

DeKay