As for Author permission, if you mean mine by that statement, then I have no problem of these being included or absorbed into token tool.
They're easy enough to add to tokentool yourself though. Just fire up tokentool, go to the file menu and select 'Manage Overlays'
Then just drag and drop the imagefile for the rings you want to add onto the new manage overlays window.
Close the overlaymanager and now your tokentool should be able to use the new rings.
edit: in retrospect explaining that probably wasn't really helpfull to you veterans
but perhaps some other people will get some use out of it.
edit2: removed the images since Photobucket no longer allows me to share them.