hockypucks bro...$3. bucks and your set.
Hockey pucks? sure thing kid.
ya man..no shiz....the compound from hockeypucks is super hard like a hard rubber mount..it has an added bonus allso...you can adjust hight by adding pucks or subtracting..its an ol school trick datsun guys have used for years..and some chevey drag racers...there is a link to my myspace that shows how to make em and how good they work.