Birthday Surprise - 1 Create a yellow tentfold blank, 10.5cm x 15cm, then round the base corners using a punch. Add a slightly smaller panel of grey fern patterned paper in the centre of the blank. 2 Die-cut nine decorative oval balloons, 3cm x 5cm each. Round the base corners of white card, 9.5cm x 14cm. Arrange the balloons across the panel, trim away the excess, then attach the panel to the blank.