The California Memorial License Plate has raised some $7 million since it's 2002 creation. But none of it has been spent yet. The linked article touches on renewed efforts to bring home some of that cash for port security - a worthy cause spearheaded by Pedro Assemblywoman Betty Karnette.
No mention is made in the article of the balance of raised funds being held for scholarships for the children of 9/11 victims. I don't think that's been accessed yet either.