One Halloween, we were so poor it scared us, but we were determined to let the kids have a great time anyway. We went to the local grocery store and got some boxes that were small enough to not inhibit their walking, and light enough to cover their main bodies. We spray painted them the right color and magic markered the words on them. My two-year-old was a "Dear Crossing" sign. It was simple and they loved it.
This costume idea was posted on our Halloween Bulletin Board by iVillager poetical in response to a request for easy Halloween costume ideas.