Brush Stroke Spring Garden Flowers Stencil by Designer Stencils. Easily create brush embroidery using our stencil and royal icing. Add a bit of piping gel to your icing to help slow down the drying time. Iris: 4.4 inches high x 3.5 inches wide Tulip: 3.3 inches high x 2 inches wide Primrose: 1.5 inches high x 2.5 inches wide. Made from durable 10-mil, food-grade plastic.