Check out this amazingly cool medieval leather armor suit for Batman's archnemesis, the Joker. The suit was constructed by Prince Armory, and it's supposed to be functional. Here is the list of components:
Jester's Helmet with Joker Mask, Breastplate, Drama Face Pauldrons, Breastplate, Jester's War Skirt, Cuisses/Knees/Greaves, Articulated Jester Shoe Sabatons
To see some close ups of individual pieces of the suit, click here. I would love to see these guys construct a medieval Batman suit next. Hell! They should do one for all of the Batman characters! Thanks to Io9.