Use a cotton bag for this activity, if the bag has creases across it, iron it first as this makes designing easier. Lay the bag onto a hard, flat surface and secure by taping the top edge to the work surface. Pressing lightly with a pencil, draw the design outline onto the fabric. Colour in design with the Berol fabric pens. Seal the design using an iron on low temperature. Follow the instructions on the Berol fabric pen box.