The Copulare equipment racks are considered exotic and have a nice system to isolate vibrations using lead/sand wooden filled platforms and the base of the racks filled with the same thing. You can customize the fills with quartz sand, lead sand or some other stuff. Their new Coral series have received a lot of attention lately.
http://www.copulare.de/english/produkte/grand_port.htm
Ciao,
Audioquest4life
http://www.copulare.de/english/produkte/grand_port.htm
Ciao,
Audioquest4life