30+ Spine-Chillingly Scary Halloween Costumes You Can DIY

Think of the phrase "till death do us part," but aimed at you and your best friend.

What you need to do: The "Purge" masks will make this killer costume absolutely terrifying, so be sure to snag one for you and one for your bestie. Wear any outfit you want, but make sure that whatever you wear is smeared with fake blood. Once you put your mask on and grab a fake weapon, you two will be unstoppable.