How do I make myself look hideously ugly?

I need ways to make myself look hideously ugly everyday so that I can scare people and freak them out and stuff. And I don't mean Halloween freak ugly, I mean regular ugly. I want something that I can actually do everyday that won't cause people to question me. And no answers like stop bathing (I don't want to become disgusting), or stupid answers like to eat something unappealing and get food/spinach in my teeth.