If you take an active interest in garage sales, you can probably pick up some ready-made Halloween costumes or gather up arts and crafts supplies to make your own for kids and adults. You won’t need many supplies for a Scooby-Doo character, for example. And, all you need to represent a popcorn box is a red and white stripped skirt or pants and a white shirt. If you want something really simple, use a few green leaves to adorn your hair and a yellow shirt. Presto — you’re a pineapple!