Someone had put down a piece of cardboard for the dog to lie on.
He drew a small piece of cardboard from his pocket.
Still, could a small piece of cardboard really be worth $1 million?
Another piece of cardboard was in his mouth, but dry.
Place a piece of cardboard between the circuit board and the box if necessary.
Find a piece of cardboard - at least A5 in size.
If parts must be moved, tape them onto a large piece of cardboard.
A piece of cardboard with the fish bore the word "stop."
A piece of cardboard blocks the old book drop in the door.
Hold this piece of cardboard against the line to stay inside.