Joe, have you or anyone seen Panopticlick give a verdict of anything other than unique or near unique fingerprint? I haven't.

This plug claims to achieve that, but I tested it to no avail:

https://chrome.google.com/webstore/detail/rubberglove/koabfojebhfdjnligkcihoeekimoekpg

Only thing so far I've stumbled upon that talks about achieving that.