To make 20 calyxes, shape 1/2 in. balls of gum paste into teardrop shapes. Indent wide end with dogbone tool and add hooked wire into narrow end. Attach to base of each flower with adhesive, smoothing up against flower. Let dry with flower turned upside down resting on petals. When dry, dust flowers with non-toxic chalk which has been grated in tea strainer. Using tip 7, pipe a mound of icing for base.