Not many accessories but who cares? The guns and stuff (RPG which blew up the Tumbler and lead to the Batpod - COOL!!) can easily be obtained and placed in his hands for those movie moments.
His outfit is very well sewn and put together. Even though there are so many layers, it doesn't make him look bulky nor puffy and the authenticity is simply amazing!
Oh, and by the way, the suit, it wasn't cheap. You oughta know, you bought it.
"Why so serious?!!" - one of the best lines delivered by Heath Ledger as the Joker. I must admit when "Batman Begins (2005)" ended with Lieutenant James Gordon (Gary Oldman playing a good guy) holding a Joker calling card, I was wondering who could fill the shoes of the Joker. Jack Nicholson's Joker in the Tim Burton Batman movie of 1989 was still fresh in all our minds. Now we are left pondering who else can top the performance of Heath Ledger as the Joker. Simply Brilliant!
The Joker wears an inner shirt, tie, vest, jacket and overcoat. His outfit is his costume and it's very nicely done!