3.75 Dark Knight Head Sculpts
 

I'm looking for some of these and can't find much. I have to assume someone knows where to get a Heath Ledger Joker, Scarecrow, Ras Al Ghul... Even any of the Arkham City stuff in 1/18 scale...

I dont think there was a 4" Begins or Dark Knight line. With a little luck and time you may be able to find someone that does shrunken 6" head casts.