American Crafts-Pebbles Home-grown Printed Chipboard Pieces: Ephemera Flowers. Add a pop of colour with these easy-to-use chipboard flowers. Perfect for a finishing touch on any project. This 5-1/4x4-1/4 inch package contains eighty printed chipboard pieces in seventeen different designs. Warning: This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm.