Feet for Nuforce?

I have a pair of Nuforce ref.9 V3 SE. Are there any particular kind of feet that you would like to recommend using with them?

(BTW, do anyone want to trade fronts? I have silver, want black)
I put Hyperion Magnetic floaters (less than $100 - opposing magnets) under my V3Se's to isolate from floorborne vibration plus added small lead pellet bags from a dive shop on top of the units to give mass to reduce airborne vibration effects. Both actions were necessary because the V3's are so light. The effect was a dramatic decrease in edginess and increase in liquidity, control, clarity and dynamics.