Best feet for slate isolation platform

As above, fine people, what would the best feet be for a slate isolation platform?

Current wooden slab has rubber feet that I'm easily persuaded to move to the slate, but I'm wondering if there's another, more efficient/audio-enhancing solution.

By the way, the slate isolation platform was a snip at £43 - made to measure and finished nicely by the a slate specialist in Snowdonia in under 24 hours. Identical jobbies on eBay and elsewhere normally command at least twice that price, so shout me if you want the name of the company.

I temporarily used a piece of 10mm kitchen marble as an isolation platform and to do so used these SORBOTHANE-ANTI-VIBRATION-FEET-11-19-25-30-40-50mm-Turntables-Speakers-PCs look at the table and pick the right size ones for the weight of the slate and what you are putting on it. My set up worked very well.

Thanks, Adrian...I'll look into that link.

Ordered a set via that link...cheers, Adrian.

Cheers for your help, Adrian...£10 from eBay, arrived, fitted and currently bringing a smile to my ugly phyzog.

No real discernible difference in audio quality between the slate and the butcher's block I was using. Aesthetically much more pleasing, though.

Thanks again.