I always liked what Marilyn Manson did with his band. They may not have masks like Slipknot or iconic makeup like Kiss but they have alter egos/stage names that are instantly recognizable... Nobody knows who the fuck Brian Hugh Warner is but everybody knows Marilyn Manson
For those of you who don't know (I know I didn't for a really long time), that's not his real name. It's a combination of Marilyn Monroe and Charles Manson. In fact every member of the band has a stage name that is a combination of the name of a popular female sex symbol (mostly actresses and singers) and the last name of a serial killer.
So beside Marilyn himself you had:
Daisy Berkowitz (Daisy Duke from Dukes of Hazzard + David Berkowitz, the infamous "Son of Sam")
Olivia Newton Bundy (Olivia Newton John + Ted Bundy)
Madonna Wayne Gacy (Madonna + John Wayne Gacy, A.K.A. Pogo the Killer Clown)
Twiggy Ramirez (Twiggy, the british supermodel + Richard Ramirez A.K.A. Night Stalker)
Since the band changed lineups a lot, there are more but these might be the most recognizable