I ordered mine on ebay a little while ago (they haven't arrived yet though). They're pretty plentiful on ebay if you make sure to choose the Worldwide option. Just be warned that I don't think they look nearly as good in real life as those little CGI mock-ups make them look. If you find "in hand" pics, they look sloppy and less expressive (but still awesome!) Happy hunting!
Looks fun! Is there an Aquaman figure? If so, I need! :)