You may have recently noticed that a new breed of theme parties has slowly begun to replace the tried-and-true soirees you’ve grown accustomed to. Instead of costume parties on Halloween, your friends are throwing mustache shindigs where everyone has to deck themselves out in furry, fake mustaches from a bygone era (never fear, you can find a wide variety of products online or in novelty stores to help you out). And rather than hosting the standard white elephant party for Christmas, you’ve started to see invites for ugly Christmas sweater parties, whereby guests must show up sporting the ugliest …