His hand flew from his pocket, holding a square of white cardboard.

They were made of white cardboard and paper painted with red patterns.

The words below that were just tiny little specks of black ink on the pulpy white cardboard.

Stick a bit of white cardboard under the collar and away you go.

The card money was printed on white cardboard and the size varied by denomination.

Printed in block letters on an eight-by-ten-inch piece of white cardboard was the word "Hello."

So we're sticking with the black and white cardboard.

He held up a piece of white cardboard, about the size of a sheet of note paper.

Production of white cardboard, cardboard boxes, and rolling paper started.

I raised it to see a brownish stain on the white cardboard.