I recommend "Thirstystone" coasters. They are way cool, cork on bottom and like sandstone upper. The only problem is sometimes with a sweating glass they stick to the glass too well and you don't notice till it falls with a bang (avoid glass tables!) and they easily break (super glue bonds them back together great though - most of mine are cracked and repaired actually).
I recommend "Thirstystone" coasters. They are way cool, cork on bottom and like sandstone upper. The only problem is sometimes with a sweating glass they stick to the glass too well and you don't notice till it falls with a bang (avoid glass tables!) and they easily break (super glue bonds them back together great though - most of mine are cracked and repaired actually).
I have a set that’s 34 years old. Nothing is cat proof. It was only on the bar.
"Nothing is cat proof" is axiomatic.