Squash balls are great. They have little or no bounce (just try to bounce one), they are much smaller than tennis balls, and have no fuzz. I've cut them in half and use them as footers. They can be screwed on to the component (or platform) or simply placed under it. They can also be used whole with a washer (or something like one) underneath to prevent them from rolling.
Your homemade tweaks?
Having just read bgmyers thread on isolating cables and some of the excellent ideas our fellow audiogoners shared, I thought it would be great for us to compile a listing of all the innovative alternatives and their uses we have come up with to tweak our systems in lieu of buying them from the pricey manufacturers.
I'll start it off with having used tennis balls as isolation devices under components.
I'll start it off with having used tennis balls as isolation devices under components.