These felt M&Ms are really quick and easy to put together and they make the perfect family themed Halloween costume idea. Just create M&Ms in the colors that you need – one for each little member of your family. For Mom and Dad, maybe make the candy bag with black felt and lettering. You could also go as a bowl if you really wanted to be creative. Overall, this is one of the easiest and least expensive ways to dress your whole family together for Halloween.