Snail Costume: Brown Kraft Paper, Masking tape, Headband, Styrofoam Balls, Ribbon, Glue Gun 1) Crumple up brown paper. Roll wrap. Use tape (temporary). Add glue, remove tape. 2) Make another half shell and glue the two sides together. 3) Make backpack with square cardboard ribbon. Glue to shell. 4) Make headband with styrofoam balls.