My girlfriend was at a DC exhibit in Poland last week and she took this picture of all the clown masks used for the opening scene of The Dark Knight. : r/pics
The Dark Knight Joker Life Size Clown mask - Spec Fiction Shop
Jokers Henchmen clown masks - Ministry of Masks
3D file Henchmen Dark Knight Clown Joker Mask Costume Helmet・3D printable model to download・Cults
The clown mask the Joker (Heath Ledger) in The Dark Knight | Spotern