Okay you’ve seen all these girls costumes, it’s time to have a bit of order now, let’s add the man. (WOW, calm down ladies, just a joke !)
The first one is at Moon Costumes and I think it’s one of the best devil costume for men. I found a similar one at Costume Craze, but the first one is really my favorite.
See the hat ? That is THE cool touch of this cool costume.
Edit : just found the Pimp Devil costume cheaper at Spookshop.