Alternatives to speaker spikes?


I have a pair of Paradigm Reference 100's with spikes at the bottom. I'm moving into a newly built apartment with beautiful hardwood floors. What can I do to prevent ruining the floor?
dsweeney33
This is the alternative we used in the "old country", and i can tell you it works! Buy 8 hardest tennis balls (paint them or whatever) cut them on half, and place them under the speakers. Now, i am not sur of the size of paradigm 100, relatively large probably, and it may be stable enough?
I don't have a customized listening room, but I've tried pennies under the spikes...it protects the floor, and I didn't notice any problems. I don't know where I heard about it, but it's been mentioned in several hi-fi mags.