If I remember correctly....and someone fix this if I am wrong!
For ramdisk, find one you like - it will be disk.info
Copy this file to ENVARC:
in startup-sequence add a line at the end
copy ENVARC:disk.info ram:disk.info
On reboot, the ramdisk icon will be changed
On hard drives, just copying the desired disk.info to the drive should do he trick.
Not sure if Newicons interferes in any way..
