This is a costume for two people. You need two large cube shaped boxes. Cut off the flaps. This will be the bottom. Paint the boxes white and paint black dots on the sides as in a dice cube. On the "1" side (make sure that's opposite the bottom) cut a hole for your head. In two opposite sides, cut holes for arms. You and your friend can go as a pair of dice (paradise), lucky 7, boxcars, etc.
Source: I saw a couple do this at a party I attended 30+ years ago.
By Paulette Gulakowski from PA
This page contains the following solutions.
Decorate the box like a present! Use wrapping paper and bows of your choice birthday, Christmas, etc. This is easy and adorable.
Make a collage costume! Using a large flattish box, paint a border around the edges to look like a picture frame. In a spot where it rests naturally when you put it over your head, cut an oval the size of your face.