Yes, I know. There is nothing remotely glamorous or stylish about violence. I also know that if Anthony Burgess's characters inhabited our world and not the world of the Korova Milk Bar, they would be snotty-nosed, tracksuit-wearing hoodies and unsightly as well as a menace.
The classic Clockwork Orange look is more to do with Stanley Kubrick and his design team than Burgess's writing, but there are similar themes - for instance, the all-white look and the single false eyelash do not appear in the novel.
To grab yourself a bit of droog style: monochrome, old-fashioned accessories such as braces and hats, flip horrorshow boots for kicking. I'd leave the codpieces out though.