Most people like to be the hero, but maybe you're feeling a little villainous this Halloween. Great! It's the perfect time to throw together a Joker costume and finally pay homage to the bad guys for a change.
You remember that old cheesy Batman TV show from the 60's? Those were simpler times, when people's hearts were a little less dark, and the media reflected that. If you want to remind people of the good old days, or else just go for an ironic twist on the usual Joker costume, you might want to try 1960's Joker.
The first thing you'll need is a light purple / magenta suit (like in the comics), with a black tie and a green shirt underneath. Next, slather your face in cheap white makeup, and grab some of your girlfriend's lipstick or some bright red makeup for the clownish smile.
Joker's mouth is kind of strangely shaped very pointy almost like Salvador Dali's mustache. Finally, get some green spray-on hair dye or find a wig that is bright green.
There are several different incarnations to choose from when it comes to a suitable movie Joker. If you'd like, you can go with the Batman series of the late 80's and early 90's by Tim Burton. In this case, swap the black tie for a blue one and wear a gold shirt underneath your purple suit.
Your red lips will be less pronounced than TV Show Joker, but the red makeup should still come off the edges of your mouth like a Glasgow smile. As before, you'll have green hair and a white face.
If you are a fan of The Dark Knight incarnation of joker, then your look will be a bit more on the messy side. While green, your hair should be mussed and possibly showing roots. Your makeup job should be questionable, with smeared clown lips, and your suit, shirt, and tie should be a bit more contemporary.