Road and Cones:
All you need is a black sweatshirt, white and black paint, and orange cloth.
Start by putting vertical lines of white paint down the middle of the black sweatshirt.
Then take the orange cloth, shape it so it looks like a cone that will fit around your head.
Using the black paint, write "CAUTION A HEAD" on the orange cone hat. And you have yourself a road and cone costume!
Thanks to Anna for this very unique idea!