Roll out gum paste 1/16 in. thick. Cut 6 petals using tulip leaf cutter from Floral Collection Flower Making Set. Ruffle edges of 3 petals by placing petal on thin foam and rolling ball tool over edges.
Cut florist wire to 6 in. Brush 1 1/2 in. of end with Gum Paste Adhesive. Wrap base of petal around wire; smooth. Repeat for all 6 petals. Set wire side down on large Flower Formers dusted with cornstarch to curve; let dry.
Assemble lily, alternating smooth and ruffled petals, around 15 pearl stamens. Secure with white florist tape. Insert end in Flower Spike, securing with ball of gum paste if necessary.