Speakers on speaker stands-isolation ideas?


I have some mid sized book shelf speakers that I use on 24” high speaker stands. I’m looking for sway to best isolate the speaker and or stand from vibrations.

The current speaker stands are filled with play sand and I have blue tack underneath the speaker holding them on the stands. The stands are located on an upstairs bonus room with carpet and foam padding underneath. 

Anyone recommend some ideas for better isolation for this kind of setup?
todd1010
I had to look up Sorbothane on the net. I've never heard of it before. It could be marketed in Aust. under a different product name.
Check out seller "dang-good-stuff" on eBay for genuine affordable Sorbothane materials.

You can place it between the speaker and stand instead of blue-tak. Just recently bought some to isolate bookshelf speakers from a resonate office table they sat on and SQ improved. Comes in 3 densities, 30D, 50D, 70D, get the lowest value that will still support the weight of the object for best isolating effect.

For people using stands on carpet, many people have recommended spikes under the stand into the carpet. 
@helomech 
I received what looked exactly like the  Acoustech Speaker Dots with my new Sound Anchor Signature Stands that I use with my Aerial LR5s.