Totem Wind - carpet spiking for stability

I recently bought a pair of used Totem Wind speakers (the orginial version, not the current 'Wind Design').  I have them on a thickly padded carpeted floor which is causing them to be a bit unstable and wobbly.  They came with a single Totem "Claw" on the front, which isn't enough to stabilize then, and that was it.  Based on the web site and all the pictures I see online, that seems to be how they were sold.  

So looking for anyone who has seen a solution or has suggestions on how to address it.  I would prefer not to start drilling into the bottom of the speaker to add screw-in spikes.