your best bet is lego starwars. i had a lego spiderman on my keychain for a long time. get to your local lego store and grab a lego c3p0, lea, and vader. decapitate and i believe the factory hole goes all the way through, so you won't have to drill. might have to, but at least they gave you a start.

i have seen lego batman, but i'm not sure how common that is.

i want a lego batman now.