Follow the package instructions to prepare cake mix and bake in paper-lined muffin cups; let cool. To prepare Vanilla Glaze: beat all glaze ingredients until smooth. Spoon the Vanilla Glaze over baked cupcakes; let stand until set, about 10 minutes. Divide frosting in half; use a few drops of food coloring to tint one half pink and the other half blue. Place each colored frosting in a plastic zipping bag; snip off a tip and pipe designs onto cupcakes. Attach candy sprinkles with a dot of frosting. Insert a lollipop in the side of each cupcake; tie on bows, if desired.