alternatives to spikes on wood floors?


i've got a heavy pair of Thiel 6s. i know i should be using them up on the spikes but i also have soft wood planks as flooring and i don't really want to put these large spike holes in them. Any alternatives?

thanks in advance for all suggestions.
dkonstruction
Hey, maybe it's just me -- or, more likely, the exceptionally spongy nature of my floor "hardwood" floor -- but I've had my Thiel 2.3's on spikes, and the spikes on pennies, for about three years. So far, the spikes have literally drilled through about 8 pennies (I replace them from time to time). I'm seriously considering a major upgrade . . . to nickles. Figure it will cost me about 30 cents for a full set of six. I think it might be worth it.
Some people use big round furniture glides instead of spikes. They're cheap at Home Depot.
Rockvirgo, the men in the black helicopters are headed over to your house right about now....:)
Thanks Karls, I better put the kettle on. Did I mention how handy $100 bills are for lighting the stove?
You could try Vibrapods, that's what I use between my floorstanders and a piece of laminated glass on carpet over hardwood, suspended floor. Sounds very good to me.

http://www.soundstage.com/synergize/synergize011999.htm
http://www.vibrapod.com/Reviews/tas.htm