Mat materials for between aquarium and stand

What are some good mat materials for use between aquarium and stand? I realize that one can use various foams, but what about cork, rubber, and other things (sorbothane, neoprene, etc)? Aside from some vibration damping and possibly some “levelling” capability (depending upon the material), what else is a good capability of a mat in general?

(I do realize many do not use anything, but it seems to be a good idea overall, especially if one can find a good material for one’s purposes that is unobtrusive.)

-Jason

 

Sources?

What are good sources, types and thicknessess (per aquarium size/weight) that you would recommend?

What are the ADA mats made of, out of curiosity?

-Jason