For instance, the dominoes costume is a great quick idea, while the Alice in Wonderland outfits require some planning. These DIY Halloween costumes are as easy or as involved as you'd like them to be. If you have movies, TV shows, and books that are family favorites, turn those obsessions with The Wizard of Oz, Charlie and the Chocolate Factory, or Stranger Things into a group costume everyone will love. Putting together a cohesive set eliminates the hassle of brainstorming multiple ideas to please everyone which, might we add, also means you don't have to make a million runs to Spirit Halloween. Simply put, dressing up is just better when you do it with a crew. Family Halloween costumes are always a hit, whether it's at a Halloween party or when you're trick-or-treating.