Well, so far this is about all I could find.

http://icons.mysitemyway.com/amber-g...e-icons-media/
http://www.freevectors.org/catalog/b...r-buttons.html (<-- it says that it can be used for personal or commercial use but you need to sign up first)

Really though, all of the good junk is privately owned.

Nuts.

I'll keep digging though.