7. Snapchat Ghost
What you need: white sheets
Remember in the days of your youth, when white sheets would magically be transformed into the perfect ghost Halloween costume? This year, don’t just be any random spooky ghost – be a Snapchat ghost! As the app has gained popularity, the little dancing ghost icon has become an easily-recognizable figure. All you need is the standard white sheets-turned-ghost costume, but when people ask you what you are, give a little dance, and ask to take a Snapchat picture with them. Who knows, maybe you’ll break the record for longest Snapchat story!