Here's something that maybe of use to someone.

A system to attach the dishwasher to granite or other rock type counter tops without trying to drill and risk damage

to the expensive counter top material.

http://www.granitegrabbers.com/

Just happened to run across these being sold on E-bay and found this website by searching google.

It appears from the google search there is a real need for this product and it's not readily known about yet.

Source: Mounting a dishwasher to granite counter tops