Sound Anchors Cone Coasters.. Expensive yes but you can slide your speakers without damaging the floor (they have a special slider material on the bottom).
Newbee: is correct about piercing coins... I have experienced the same... Nickles from pre 1970 were the hardest if you had to do a temporary solution.
Sistrum makes some cone cups, plus their speaker sound good. I prefer the Sound Anchors because of the size doesn't allow the spike to slip out when sliding them into position.
You could float your speakers on Aurio Pro Max's also and then put some felt under the bottom of the Bearings so they don't mark up the floors.
Newbee: is correct about piercing coins... I have experienced the same... Nickles from pre 1970 were the hardest if you had to do a temporary solution.
Sistrum makes some cone cups, plus their speaker sound good. I prefer the Sound Anchors because of the size doesn't allow the spike to slip out when sliding them into position.
You could float your speakers on Aurio Pro Max's also and then put some felt under the bottom of the Bearings so they don't mark up the floors.