One of the things a devil, or succubus costume must have is a pair of horns. There are many different kinds of course, some more stylized than others. But sometimes there’s a pair of horns which push the boundaries and make me wonder if they are horns or something else entirely.
This is called the Demon Horns Headband and it sells on various sites for about $10 US, more or less.
These seem less horns than they are flames and in some way that does work. That said, I think I have close competition for the worst pair of horns that I have found. They look tacky, cheap and seem kind of cartoonish, which really does not appeal to me at all.
Too large, too silly looking and not really an option to think about.
Zero pitchforks out of five.
Small cute horns work so much better.